Altered UART_Test/main.c
Made UART library and included it in Main Project
Updated Stepper functions and test progs to work interrupt driven
Also made stuff in Main look more library like
Made Stepper Library usable and updated makefile
Also changed main.c (currently only a testing program for steppers)
Merge branch 'testing' of https://github.com/dCSeven/HPGLPlotter

Conflicts:
	UART_Test/main.c used the one from testing