Extract NS_TYPED_ENUM and NS_TYPED_EXTENSIBLE_ENUM

[ronaldoussoren]

NS_TYPED_ENUM and NS_TYPED_EXTENSIBLE_ENUM are basically comparable with typing.NewType(), find a way to extract these using the metadata scanner and add NewType definitions for them to metadata, as was done earlier for NS_ENUM (with with a different base type).

A problem with this: at least up to Xcode 13.3 the information is not easily extractable using clang's C API.

It might be easier to just maintain these manually, there appear to be only 235 definitions of those in framework headers.

For now:

• Update PyObjCTools.TestSupport (TestCase.assertIsTypedEnum(tp, basetype)
• Update metadata compiler
• Add tests for NS_TYPED*_ENUM in all framework wrappers
• Manually add metadata for these typed enums to framework wrappers

Updating the metadata extractor can wait.

Note that this issue is only a small step toward static typing support, it allows using Cocoa type names in type annotations, but does not help in actually running a static type checker that will require generating typing stubs for framework bindings.