Follow compilation flags used by many distributions

- make profiles for software-types "self contained"
- add default ports ( because port is marked required )

/reviewed-on nexedi/slapos!664

installing vscode-ripgrep creates a folder in temporary directory, but
never removes it.

On our test nodes it was observed that a first testnode running installs
and create this folder in /tmp/ then another testnode running as another
unix user installs and we had this error:

    Command: node ./lib/postinstall.js
    Arguments:
    Directory: /srv/slapgrid/slappart13/srv/testnode/cqg/inst/test0-0/tmp/soft/c3f3d686d3e77f9e5c20a555a2698c98/parts/theia/node_modules/vscode-ripgrep
    Output:
    Finding release for v11.0.1-2
    GET https://api.github.com/repos/microsoft/ripgrep-prebuilt/releases/tags/v11.0.1-2
    Downloading from https://api.github.com/repos/microsoft/ripgrep-prebuilt/releases/assets/13800816
    Downloading to /tmp/vscode-ripgrep-cache-1.5.7/ripgrep-v11.0.1-2-x86_64-unknown-linux-musl.tar.gz
    Download options: {"headers":{"user-agent":"vscode-ripgrep","accept":"application/octet-stream"}}
    events.js:167
        throw er; // Unhandled 'error' event
        ^

    Error: EACCES: permission denied, open '/tmp/vscode-ripgrep-cache-1.5.7/ripgrep-v11.0.1-2-x86_64-unknown-linux-musl.tar.gz'
    Emitted 'error' event at:
        at fs.open (internal/fs/streams.js:250:12)
        at FSReqWrap.oncomplete (fs.js:145:20)
    info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.
    theia: Non zero exit code (1) while running command.
    While:
    Installing theia.
    Error: Non zero exit code (1) while running command.

/reviewed-on !668

This Merge Request aims to make as many components used by the webrunner shared.

/reviewed-on !665

/reviewed on nexedi/slapos!666

This reverts commit 17b896e4.

This is possibly incorrect approach. Current work which detected this issue
will be recoded to workaround it.

Software tested inside of erp5testnode uses default monitor port, so free
it for them.

tcpv4-port is currently marked as required, define default ports for
convenience.

Individual profiles (such as instance-mariadb-schema.json) also needs to
be valid when used directly, but the profiles where written in a way
that definitions only resolve when schemas are extended
instance-erp5-input-schema.json schema.

When getting a raw file in gitlab with ajax a first OPTIONS request is send, this simply fail because not implemented. To solve the problem, we allow nginx to reply to OPTIONS request and allow GET method.

/reviewed-on nexedi/slapos!663

vscode's Python extension works on this version.

/reviewed-on nexedi/slapos!643

This runs in a go workspace, but we don't need to always have the
(gowork) marker.

We don't want theia to use /tmp/ this prevents running more than one
instance (for example we can only install vscode extensions once. golang
language server is also broken)

if yarn.lock is changed, part should be re-installed. This is only
useful during development.

- exclude .pyc in files list
- exclude .env for virtualenv
- don't watch git (not sure it's really needed)
- use 2 spaces on editors
- use Vifib's plantuml service
- use Ctrl for multi cursor (for chromeos where alt is right click)

Also stop including python, as we can use vscode python instead.
Add a README to describe how to do this.