removed dependnce on UARTstdio
removed dependnce on UARTstdio

We used 3 functions from UARTstdio were : UARTgets, UARTputs, and Stdio init.
all three functions are simple, so I rewrote them.
I would like to point out that this is primarily to make linking of RASLib easier and to avoid '#include'ing a C source file.

rrbutani/Rasware,rrbutani/Rasware,mcasterlin/Rasware,mcasterlin/Rasware