Move table open result processing to the caller

* st_schema_table::process_table doesn't have to check whether the table
was opened successfully
* It also doesn't have to check for a thd error and convert it to a warning
* This simplifies adding new tables into information_schema
* A callback still can output some info to a user in case of error. In
order to do this, I_S_EXTENDED_ERROR_HANDLING should be specified in
i_s_requested_object.

Now one can call thd->sql_command_flags() instead of
sql_command_flags[thd->lex->sql_command].

Two new information_schema views are added:
* PERIOD table -- columns TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME,
  PERIOD_NAME, START_COLUMN_NAME, END_COLUMN_NAME.
* KEY_PERIOD_USAGE -- works similar to KEY_COLUMN_USAGE, but for periods.
  Columns CONSTRAINT_CATALOG, CONSTRAINT_SCHEMA, CONSTRAINT_NAME,
  TABLE_CATALOG, TABLE_SCHEMA, TABLE_NAME, PERIOD_NAME

Two new columns are added to the COLUMNS view:
 IS_SYSTEM_TIME_PERIOD_START, IS_SYSTEM_TIME_PERIOD_END - contain YES/NO.

Before starting to go over the format string, prepare the current time
zone information incase '%z' or '%Z' is encountered.
This information can be obtained as given below:

A) If timezone is not set ( meaning we are working with system timezone):
Get the MYSQL_TIME representation for current time and GMT time using
current thread variable for timezone and timezone variable for UTC
respectively. This MYSQL_TIME variable will be used to calculate time
difference. Also convert current time in second to tm structure to
get system timezone information.

B) If timezone is set as offset:
Get timezone information using current timezone information and store
in appropriate variable.

C) If timezone is set as some place (example: Europe/Berlin)
Get timezone information by searching the timezone. During internal
timezone search, information like timeoffset from UTC and abbrevation
is stored in another relevant structure. Hence use the same information.

Refactor CPackWixConfig.cmake so that it complains about unknown CPack
components.

This would prevent missing components,or discrepancy between MSI and ZIP
content, whenever new components are added or renamed.

Also, remove some old stuff, and use macros add_component_group() and
add_component() to reduce the verbosity.

Move files to the mariadb-test package that are created during the build
but were not included in the package yet.

remove old deprecation helpers that were not used anywhere.

create new deprecation helpers and enforce their usage

this also removes inconsistencies in reporting deprecation:
sometimes it was ER_WARN_DEPRECATED_SYNTAX (1287),
sometimes ER_WARN_DEPRECATED_SYNTAX_NO_REPLACEMENT (1681),
sometimes a warning, sometimes a note.

it should always be
* ER_WARN_DEPRECATED_SYNTAX
* a warning (because it's something actionable, not purely informational)

after fb175a1b

it was introduced in ff8651c4 to suppress deprecated
warnings for CALL under the flawed logic that "It's doesn't
make sense to print out deprecated syntax warnings when the
routine is being executed because this kind of warning only
matters when the routine is being created".

Which is incorrect, a feature might become deprecated after
the routine was created and a user has to know that to be able
to update the procedure before it stops working when a
deprecated feature is removed.

mark non-default values of old_mode as deprecated.
print a warning when they're set from the command line and in SQL.

In particular:

* @@debug
  deprecated since 5.5.37
* sr_YU locale
  deprecated since 10.0.11
* "engine_condition_pushdown" in the @@optimizer_switch
  deprecated since 10.1.1
* @@date_format, @@datetime_format, @@time_format, @@max_tmp_tables
  deprecated since  10.1.2
* @@wsrep_causal_reads
  deprecated since 10.1.3
* "parser" in mroonga table comment
  deprecated since 10.2.11

KDF(key_str, salt [, {info | iterations} [, kdf_name [, width ]]])

kdf_name is "hkdf" or "pbkdf2_hmac" (default).

width (in bits) can be any number divisible by 8,
by default it's taken from @@block_encryption_mode

iterations must be positive, and is 1000 by default

OpenSSL 1.0 doesn't support HKDF, so it'll return NULL.
This OpenSSL version is still used in SLES 12 and CentOS 7

like ErrConvString, but puts the string in 'single quotes'

followup for 7ba9c7fb

* don't introduce random four-space-gaps into the middle of description
  (meaning, nicely aligned wrapped string in the code gets ugly
  in the rpm)
* remove obsolete comment
* MariaDB-connect-engine is a required package for MariaDB-connect-engine-jdbc
  not "recommended"
* don't recommend both mariadb-java-client and mysql-connector-java
* in fact, don't recommend anything, it works badly for old rpm < 4.13,
  installs something that user may not want, and install redundand deps.
  Let's rethink how to do it meaningfully. And not break tests.

followup for 7ba9c7fb

Not ready yet, it fails its own test suite

This reverts commit 485c9b1f

first seen in daca468c

Commit 738d4604 changed component name
from "backup" to "Backup". Use the new name now.

Fix the Cache_flip_event_log constructor.

- optimize atomic store64/load64 implementation.
- allow CRC32 optimization. Do not allow pmull yet, as this fails like in
  https://stackoverflow.com/questions/54048837/how-to-perform-polynomial-multiplication-using-arm64

- Removing two copies of the drop_routine.
  Adding a shared and much simplified version.

- Removing LEX metods:
      bool stmt_drop_function(const DDL_options_st &options,
                              const Lex_ident_sys_st &db,
                              const Lex_ident_sys_st &name);

      bool stmt_drop_function(const DDL_options_st &options,
                              const Lex_ident_sys_st &name);

      bool stmt_drop_procedure(const DDL_options_st &options,
                               sp_name *name);

  The code inside the methods was very similar.
  Adding one method instead:

      bool stmt_drop_routine(const Sp_handler *sph,
                          const DDL_options_st &options,
                          const Lex_ident_sys_st &db,
                          const Lex_ident_sys_st &name);

- Adding a new virtual method Sp_handler:sqlcom_drop().
  It helped to unify the code inside the new stmt_drop_routine().

Resolving the shift/reduce conflict conflict in:

GRANT ..  ON /*ambiguity*/ FUNCTION f1 TO foo@localhost;
GRANT ... ON /*ambiguity*/ [TABLE] function TO foo@localhost;

and in

REVOKE ..  ON /*ambiguity*/ FUNCTION f1 TO foo@localhost;
REVOKE ... ON /*ambiguity*/ [TABLE] function TO foo@localhost;

using a new %prec directive.

ibuf_bitmap_buffered(): A new predicate, to check if the
IBUF_BITMAP_BUFFERED bit for a particular page is set.

ibuf_merge(): If ibuf_bitmap_buffered() does not hold,
skip the records for the page. One reason why we might have
this situation is the bug that was fixed in
commit 34c283ba (MDEV-32132).

Fixed tests:
main.flush_corruption - disabled service connection for some queries
since it is necessary that the query SELECT pass in the same session