hw: Update latest design files and Readme

[azerimaker]

Summary:

Adding latest design, production files and some renders of the Generic Node Sensor Edition.

Closes #1 Closes #5 Closes #6 Closes #58

Changes:

• Some pin name changes
• Reduced the number of load switches to two
• New enclosure
• 2x Bidirectional switches for VDD_PA are now replaced with a single IC - a dual channel one.

Additions:

• Added voltage supervisor for drained batteries
• Removable RF Shield can and holder clips
• 2.54mm pitch pin headers and a QWIIC I2C port for debugging and easy expansion

Improvements:

• Input protection
• Current limiting for the buzzer
• RF layout

Notes for Reviewers:

We need to improve docs and add a clear getting started guide.

[elsalahy]

Can you also fix any file that uses this absolute path C:/Users/Admin/OneDrive/TTI_Files/ST_Node/

[azerimaker]

@azerimaker There is still a number of issues

• The use of absolute paths in a number of files see:
• The use of _ in folder/file naming instead of -, we should have some coherency and stick with -, see sch and fab

Other issues:

• I don't think we should maintain step files in this way, Adding 100,000+ auto generated changes to one file and maintaining it is really not ideal

So if you really want to maintain it, you could add these files in compressed format (Zip or RAR).

• End of files should have an extra empty line
• I see you added LICENSES and added one todo line, please remove the file and it is typically called LICENSE as we can add it later when we have some content
• Typically images are used in the repo, but there is one that is not used, is this international (referring to generic_node_batteryHolder.png )?

I did some of those changes, but changing abs path to relative in all those 45 footprint files require manually changing each one of them one-by-one, and THB right now I have more important things to do.