* ch552 firmware: add ch55x support files directly
* Add sdcc compiler to docker image, for building CH552 firmware
* Rework production test script
* Add menu-based test runner
* Rewrite production test flows as lists of individual tests
* Add both production flows and manual tests to menu
* Switch to using included binaries
* production test: Update message format
* test_txrx_touchpad: Retry if device communications fail
* production test: put all binaries in binaries/ folder
* binaries/top.bin: replace broken binary
* flash_check: Check for explicit flash IDs
* Document most test procedures
* Test plan documentation
* Sample udev rules
* Production test: allow external references to be overridden
* Remove outdated descriptions
* Correct shebang
* Update shebangs to comply with PEP 394
Change the python scripts to call python instead of python3, as this
works cross platform. See:
https://peps.python.org/pep-0394/#for-python-script-publishers
* Move production test to higher-level directory
* Clarify production test setup
* Move USB C connector test to separate directory
Co-authored-by: Michael Cardell Widerkrantz <mc@tillitis.se>