Changelog:
- Add RCM-payload tool support for Raspberry Pi. Built and tested on 'Raspberry Pi 3 Model B'.
Notes: For using this application in GUI you have to install 'openjfx' package. For using it in CLI-mode the only requirement is 'default-jdk'. (Package names listed here and in readme file are valid for 'Raspberry Pi OS'.) And thanks to @dreamfalcon ;)