This is a lot cleaner than cd-ing above the repository (potentially
dangerous in CI because the state of the directory above the repository
is not guaranteed) and doing a 'git clone'. This will also allow
the submodule's commit to be pinned and not change without developer
intent.

Make GPS acquire a lock much faster(only lat and lon is required now). Also stop sending out-of-date coords

Firmware update readme

See merge request cats/mobile-transceiver-software!4

build flasher

See merge request cats/mobile-transceiver-software!3

add ci

See merge request cats/mobile-transceiver-software!2