* Make file extensions case-insensitive
* Bump protobuf version
* Add support for 5V control via RPC
* Add support for 5V control via Expansion protocol
* Update running instructions
* Update expansion module documentation
* Prettify condition
* Test RPC OTG control as well
* Assets: bump protobuf version
* Disable PVS license expiration check, fix PVS warnings
Co-authored-by: あく <alleteam@gmail.com>