added 4 UART functions to change parameters of system
added xbee code and config!
Merge branch 't' of https://github.com/ashrayjain/ee2024-assignment2 into newmaster

Conflicts:
	Assignment2/Debug/Assignment2.axf
	Assignment2/Debug/Assignment2.map
	Assignment2/Debug/Assignment2_Debug.ld
	Assignment2/Debug/Assignment2_Debug_lib.ld
	Assignment2/Debug/Assignment2_Debug_mem.ld
	Assignment2/Debug/src/main.o