1.3.0 Dropping Python 2.7 support

This is the first major version supporting Python 3 only.

• Improve error message on non Windows environments. By @CristiFati.
• Adjust styles of codebase. By @junkmd.
• Apply black==22.12.0 formatter. By @junkmd.
• Modernize client.dynamic. By @junkmd.
• Add tests for client.dynamic. By @junkmd.
• Fix test_client. By @junkmd.
• Fix test_getactiveobj. By @junkmd.
• Make explicit the symbols that imports from the wrapper module into the friendly module. By @junkmd.
• Modernize type annotations in statically defined modules. By @junkmd.
• Fix several type annotations in statically defined modules. By @jonschz and @junkmd.
• Remove sys.version_info bridges from production codebase. By @junkmd.
• Remove for_stub=True conditional branch from the tools.codegenerator.ImportedNamespaces.getvalue. By @junkmd.
• Fix codegenerator as generating __next__() instead of next() in IEnum.... By @jonschz.
• Add unit test for generated IEnum... interfaces. By @jonschz.
• Remove 'Programming Language :: Python :: 2.7' from setup.py. By @junkmd.
• Change the base class of _ComMemberSpec and _DispMemberSpec to typing.NamedTuple. By @junkmd.
• Delint and remove wildcard-import from typeinfo. By @junkmd.
• Split DISPPARAMS instantiation in IDispatch.Invoke method. By @junkmd.
• Move clear_comtypes_cache to be a callable comtypes.clear_cache module. By @bennyrowland.
• Wrapper modules are now imported into friendly modules using an abstracted name, __wrapper_module__. By @junkmd.
• Fix old index bug in call_with_inout within _fix_inout_args. By @jonschz.
• Fix CONTRIBUTING.md. By @junkmd.
• Update README.md. By @junkmd.