Merge branch 'main' into rev_0.7.4.1

Added alternative 13v regulator setup for testing

Change part selection to reflect avaliability

Updated footprints to refelct part avaliability

Update placement blocking connectors

Added .gitignore to remove JLC temp files

Added .gitignore for Kicad temp files and updated bom for JLC parts

Added new 13V boost converter

Merge branch 'rev_0.7.4' of https://github.com/inspireFly-VT/ContentCube_Payload_Board into rev_0.7.4

Update for JLC PCBA part selection