Updating motate. Restructuring and pulling in new CMSIS architectures.
More restructuring.
More cleanup.
Removing Arduino examples.
Removing accidentally committed TARGET_Atmel-old directory.
More rearranging.
Switch to Atmel linker script for sam3x8*.
FRDM-KL05Z almost ready
Added Motate::WatchDogTimer. Cleanup.

FRDM-KL05Z now blinks!
Removing long-forgotten and unneeded platform/arm directory.
Major rearranging of code and build system.

**Note:** `make PLATFORM=xx` is now `make BOARD=xxx`