little-cms: install Python bindings inside prefix

Closes #33827.
language/python: add helper methods for pth detection
keg: add python_pth_files_installed? helper
doctor: check for .pth support in Homebrew site-packages
caveats: recommend adding python site-packages with site.addsitedir

Closes #33364. Fixes #30844.
stlink: added 1.0.0 release
stlink: fixed make install param
stlink: add 1.0.0 bottle.