quad: get most recent groundStation code

groundStation/.gitignore

groundStation/Makefile

groundStation/README.md

groundStation/src/backend/backend.c

groundStation/src/backend/commands.c

groundStation/src/backend/commands.h

groundStation/src/backend/communication.c

groundStation/src/backend/communication.h

groundStation/src/backend/config.h

groundStation/src/backend/logger.c

groundStation/src/backend/logger.h

groundStation/src/backend/old_main.cold

groundStation/src/backend/type_def.h

groundStation/src/backend/vrpn_tracker.cpp

groundStation/src/backend/vrpn_tracker.hpp

groundStation/src/cli/cli.c

groundStation/src/cli/cli.h

groundStation/src/cli/cli_getimu.h

groundStation/src/cli/cli_getpid.c

groundStation/src/cli/cli_getpid.h