Add binary properties to python_defaults and add modern_python_path_defaults

So that we can more easily enable these new flags on several
modules.

It seems you can still apply a python_defaults to a python_library
even with this change, so I didn't break it out into a separate
python_binary_defaults.

Bug: 245583294
Test: m py_dont_import_folder_of_entrypoint_test && out/host/linux-x86/testcases/py_dont_import_folder_of_entrypoint_test/x86_64/py_dont_import_folder_of_entrypoint_test
Change-Id: Iecf9c1845df4630bafdea9957eb2450c15f8596b