Implement frozen modules (#4)

added 6 commits

• 6c2c4c15 - 1 commit from branch master
• 9a5eeb4d - fix(epicardium): Remove superfluous SEV-WFE pair
• aea7b2db - feat(pycardium): Add DEBUG_printf
• 95f5050b - feat(pycardium): Enable frozen-module support
• d407658a - feat(py): Add a color module
• 2433b2f0 - fix(pycardium): Make leds module work with colors

Compare with previous version

merged