wip: moved files to new structure

quad/src/computation_graph/tests.c

quad/src/computation_graph/tests.h

quad/src/gen_diagram/.gitignore

quad/src/gen_diagram/Makefile

quad/src/gen_diagram/README.md

quad/src/gen_diagram/create_png.sh

quad/src/gen_diagram/gen_diagram

quad/src/gen_diagram/generate.c

quad/src/gen_diagram/local_PID.h

quad/src/gen_diagram/network.dot

quad/src/gen_diagram/network.png

quad/src/quad_app/Copy of original lscript.ld

quad/src/quad_app/PID.c

quad/src/quad_app/PID.h

quad/src/quad_app/README.txt

quad/src/quad_app/actuator_command_processing.c

quad/src/quad_app/actuator_command_processing.h

quad/src/quad_app/callbacks.c

quad/src/quad_app/callbacks.h

quad/src/quad_app/cb_default.h