removed old style syntax

- removed secop/metaclass.py
- moved code from ModuleMeta to modules.HasAccessibles.__init_subclass__
- reworked properties:
  assignment obj.property = value now always allowed
- reworked Parameters and Command to be true descriptors
- Command must now be solely used as decorator
- renamed 'usercommand' to 'Command'
- command methods no longer start with 'do_'
- reworked mechanism to determine accessible order:
  the attribute paramOrder, if given, determines order of accessibles
+ fixed some issues makeing the IDE more happy
+ simplified code for StatusType and added a test for it

Change-Id: I8045cf38ee6f4d4862428272df0b12a7c8abaca7
Reviewed-on: https://forge.frm2.tum.de/review/c/sine2020/secop/playground/+/25049
Tested-by: Jenkins Automated Tests <pedersen+jenkins@frm2.tum.de>
Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch>

secop/lib/classdoc.py

@@ -67,6 +67,7 @@ SIMPLETYPES = {
     'IntRange': 'int',
     'BlobType': 'bytes',
     'StringType': 'str',
+    'TextType': 'str',
     'BoolType': 'bool',
     'StructOf': 'dict',
 }
@@ -179,7 +180,7 @@ def append_to_doc(cls, lines, itemcls, name, attrname, fmtfunc):
 def class_doc_handler(app, what, name, cls, options, lines):
     if what == 'class':
         if issubclass(cls, HasProperties):
-            append_to_doc(cls, lines, Property, 'properties', 'properties', fmt_property)
+            append_to_doc(cls, lines, Property, 'properties', 'propertyDict', fmt_property)
         if issubclass(cls, Module):
             append_to_doc(cls, lines, Parameter, 'parameters', 'accessibles', fmt_param)
             append_to_doc(cls, lines, Command, 'commands', 'accessibles', fmt_command)