lib: stm32wb0: Add BLE controller implementation

[HoZHel]

Provide BLE controller implementation for STM32WB0x SOCs.

Provide the required license (ST ULTIMATE LIBERTY) to use the binary BLOB.

Modify the yaml file to support fetching the STM32WB0 binary stack library
for Bluetooth implementation.

[erwango]

A README file summing up the origin of the files added would be required.
Similar to https://github.com/zephyrproject-rtos/hal_stm32/blob/main/lib/stm32wb/hci/README.

Also, to simplify follow up maintenance, I'd expect these files could be updated automatically using existing script. This is not a blocker, but it would be required to have it eventually.

[HoZHel]

A README file summing up the origin of the files added would be required. Similar to https://github.com/zephyrproject-rtos/hal_stm32/blob/main/lib/stm32wb/hci/README.

Ok, I'll add it.

Also, to simplify follow up maintenance, I'd expect these files could be updated automatically using existing script. This is not a blocker, but it would be required to have it eventually.

I will update this file in the future.

[HoZHel]

A README file summing up the origin of the files added would be required. Similar to https://github.com/zephyrproject-rtos/hal_stm32/blob/main/lib/stm32wb/hci/README.

Done.

[erwango]

Thanks for the CMake clean up.
So more comments on the files extracted from the lib to here. Are they all required ?

[erwango]

Thanks for the changes.
One minor change and we're good to go.

[HoZHel]

Rebased
Removed trailing white spaces
dos2unix applied