Log message:
python/wheel.mk: simplify a lot, and switch to 'installer' for installation

This follows the recommended bootstrap method (flit_core, build, installer).

However, installer installs different files than pip, so update PLISTs
for all packages using wheel.mk and bump their PKGREVISIONs.

Log message:
py-whatthepatch: @adam was here

Log message:
devel/py-whatthepatch: import py-whatthepatch-1.0.5

What The Patch!? is a library for both parsing and applying patch
files.