Move the skywater-pdk Python library into this repository and make it compatible with all the google open source PDKs

[mithro]

The SkyWater PDK has a Python library at https://github.com/google/skywater-pdk/tree/main/scripts/python-skywater-pdk and the documentation can be found at https://skywater-pdk.readthedocs.io/en/main/python-api/skywater_pdk.html#submodules

The library lets you do things like decode file names into human readable descriptions.

Pretty much everything in the library should work with everything that follows our naming scheme found at https://docs.google.com/document/d/1rDN5jw8sh0aTwf1jScn0nP2zy4FWLxC-82M8TL3Lbr4/edit#

[mithro]

Currently reserved the following on PyPi;

• https://pypi.org/project/open-source-pdks/
• https://pypi.org/project/gf180mcu-pdk/
• https://pypi.org/project/sky130-pdk/