Adding BOOTLOADER option to support Robotis bootloader different ROM

Signed-off-by: Grégoire Passault <g.passault@gmail.com>
Adding ROBOTIS "make install" and reset hook

Signed-off-by: Grégoire Passault <g.passault@gmail.com>
Merge pull request #89 from Gregwar/bootloader-option

Adding BOOTLOADER option to support Robotis bootloader different ROM