Move dependent egg-versions for added components to stack/slapos.cfg

Move versions for eggs that component/{ZEO,pygolang,zodbtools,pytest}
depend on out of component/ and into stack/slapos.cfg

Leave version of component <X> inside component/<X>.

I was asked to do so:

nexedi/slapos!839 (comment 119170)

component/ZEO/buildout.cfg

@@ -47,9 +47,3 @@ git-executable = ${git:location}/bin/git
 recipe  = zc.recipe.egg:eggs
 egg     = ZEO
 eggs    = ${:egg}
-
-
-[versions]
-# Required by:
-# ZEO==4.3.1
-zdaemon = 4.2.0

component/pygolang/buildout.cfg

@@ -55,16 +55,3 @@ scripts = ${:interpreter}
 
 [versions]
 pygolang = 0.0.7.post1
-setuptools-dso = 1.7
-gevent = 20.9.0
-Importing = 1.10
-wheel = 0.35.1
-# pinned by stack/slapos:
-# six
-# decorator
-
-# required by gevent
-greenlet = 0.4.17
-
-# match ERP5; latest is 4.5.0
-zope.event = 3.5.2

component/pytest/buildout.cfg

@@ -15,20 +15,3 @@ eggs    = ${pytest:eggs}
 
 [versions]
 pytest  = 4.6.11
-py      = 1.9.0
-pluggy  = 0.13.1
-
-pathlib2= 2.3.5
-scandir = 1.10.0
-
-wcwidth = 0.2.5
-backports.functools-lru-cache = 1.6.1
-
-more-itertools = 5.0.0
-atomicwrites = 1.4.0
-funcsigs = 1.0.2
-
-importlib-metadata = 1.7.0
-zipp = 1.2.0
-contextlib2 = 0.6.0.post1
-configparser = 4.0.2

component/zodbtools/buildout.cfg

@@ -29,16 +29,3 @@ eggs    = ${zodbtools:eggs}
 
 [versions]
 zodbtools = 0.0.0.dev8
-
-# pygolang          -> component/pygolang/
-
-zodburi = 2.4.0
-# zope.interface    -> stack/slapos.cfg
-# six               -> stack/slapos.cfg
-dateparser = 0.7.6
-
-# needed by dateparser:
-# python-dateutil   -> stack/slapos.cfg
-# pytz              -> stack/slapos.cfg
-regex = 2020.9.27
-# tzlocal           -> stack/slapos.cfg

stack/slapos.cfg

@@ -143,10 +143,13 @@ zc.recipe.egg = 2.0.3+slapos003
 hexagonit.recipe.download = 1.7.post4
 
 Jinja2 = 2.9.5
+Importing = 1.10
 MarkupSafe = 1.0
 PyYAML = 3.13
 Werkzeug = 0.12
 asn1crypto = 1.3.0
+atomicwrites = 1.4.0
+backports.functools-lru-cache = 1.6.1
 backports.lzma = 0.0.14
 cffi = 1.14.0
 click = 6.7
@@ -154,23 +157,37 @@ cliff = 2.4.0
 cmd2 = 0.7.0
 collective.recipe.shelloutput = 0.1
 collective.recipe.template = 2.0
+configparser = 4.0.2
+contextlib2 = 0.6.0.post1
 cryptography = 2.9.2
+dateparser = 0.7.6
 decorator = 4.3.0
+funcsigs = 1.0.2
+gevent = 20.9.0
+greenlet = 0.4.17
 idna = 2.9
+importlib-metadata = 1.7.0
 inotify-simple = 1.1.1
 itsdangerous = 0.24
 lock-file = 2.0
 lxml = 4.4.3
 meld3 = 1.0.2
+more-itertools = 5.0.0
 netaddr = 0.7.19
+pathlib2 = 2.3.5
 pbr = 2.0.0
 plone.recipe.command = 1.1
 prettytable = 0.7.2
 psutil = 5.6.3
+pluggy = 0.13.1
+py = 1.9.0
 pyOpenSSL = 19.1.0
 pyparsing = 2.2.0
 pytz = 2016.10
+regex = 2020.9.27
 requests = 2.24.0
+scandir = 1.10.0
+setuptools-dso = 1.7
 six = 1.12.0
 slapos.cookbook = 1.0.167
 slapos.core = 1.6.2
@@ -184,7 +201,13 @@ slapos.toolbox = 0.112
 stevedore = 1.21.0
 subprocess32 = 3.5.3
 unicodecsv = 0.14.1
+wcwidth = 0.2.5
+wheel = 0.35.1
 xml-marshaller = 1.0.2
+zdaemon = 4.2.0
+zipp = 1.2.0
+zodburi = 2.4.0
+zope.event = 3.5.2
 paramiko = 2.1.3
 CacheControl = 0.12.5
 msgpack = 0.6.2