New targets:
. STM32F405, STM32F415, STM32F407, STM32F417

Improvements:

. Implement USB dongle serialization method
. Support for the Phyton CodeMaster-ARM compiler toolchain. This feature is only available for RKit-ARM Enterprise version.

Fixes:

. Correct management of STM32 option bytes (erasing)
. Correct management of STM32 boot mode (dual boot mode of XL density devices)