gh-97959: Fix rendering of routines in pydoc

[serhiy-storchaka]

• Class methods no longer have "method of builtins.type instance" note.
• Corresponding notes are now added for class and unbound methods.
• Method and function aliases now have references to the module or the class where the origin was defined if it differs from the current.
• Bound methods are now listed in the static methods section.
• Methods of builtin classes are now supported as well as methods of Python classes.

• Issue: pydoc renders from builtins.type note, even if it is incorrect #97959