Add the header files and the startup code.
Add the GPIO BSP and a blinky test main.
Enable GPIO clocks in the BSP.
Add GPIO Port set function
Add comments to gpio.c and add the return 0 to the main function.
Changed enable gpio clocks to defines.
Add uart0 support module. Don't working yet.
Initialize uart0, but don't send anything over it.
Add License and Readme.
Merge branch 'github.com/develop'