pytest: add pytests for monimod

For main_fw and bootloader

Signed-off-by: Adam Wujek <dev_public@wujek.eu>
3 jobs from adam-dev in 46 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build Fw
passed #9979
arm-clang-coast
make_bootloader_fw

00:15

passed #9978
arm-clang-coast
make_main_fw

00:17

passed #9980
arm-clang-coast
make_test_master_fw

00:14