Work in progress orbital shipping game

Dependencies:
	libTangerine: https://gitlab.com/cinnaboot/tangerine
	Catch2 (for tests):
		https://github.com/catchorg/Catch2/blob/devel/docs/Readme.md

TODO:
	add git submodule for libTangerine
	try out Catch2 for testing: https://github.com/catchorg/Catch2
	you know, make the actual game