Improve and fix repr methods

[Avasam]

The following from the change entry:

• Added missing quotes and closing parenthesis to win32com.client.build.MapEntry's repr
• The following classes will now use the correct subclass name in repr:
  • win32rcparser.StringDef
  • win32pdhquery.QueryError
  • pywin.tools.browser.HLIPythonObject
  • win32comext.axscript.client.pyscript.NamedScriptAttribute
  • win32comext.axscript.client.error.AXScriptException
  • win32comext.axdebug.debugger.ModuleTreeNode
  • win32com.server.exception.COMException
  • win32com.client.VARIANT
• The following classes now produce a valid eval string representation when calling repr:
  • pywin.tools.browser.HLIPythonObject
  • win32comext.axscript.client.pyscript.NamedScriptAttribute
  • win32comext.axscript.client.error.AXScriptException
  • win32com.server.exception.COMException

As well as using f-string in repr

[mhammond]

Please split this into 2 so it's clear what is being fixed vs what is being improved. The changelog should only list things which would be observable (ie, where the repr output changes). Type annotations for repr also seem pointless to me.

[Avasam]

Split up in:

• Respect subclass names in repr #2570
• Simplify various repr calls #2571
• Improve win32com.client.build.MapEntry strings #2572
• Update some repr to produce a string representation valid for eval #2573
• Update CoClassBaseClass repr to not always include None as a submodule #2574

(There's some overlap so merge conflicts are to be expected)