[STM32F0] Update STM32Cube driver to support new devices
[NUCLEO_F070RB] Add new target - part 1 cmsis
[NUCLEO_F070RB] Add new target - part 2 hal
[NUCLEO_F070RB]Add new target - part 3 workspace_tools
Merge pull request #801 from bcostm/master

Add new target - NUCLEO_F070RB