cleanup code a bit to make the data/functions distinction clearer
added rudimentary save/load
use glfwGetTime() to actually calculate dt
make test player move faster
cleanup, bugfix
fix bug in transform save/load
fix bug in test game save/load
make player even faster
update notes
begin moving test stuff out
move more test stuff out of game.h/game.c
only do glClearColor(...) once