Add west manifest contributed by edgetriggered to allow automated
cloning of the correst Zephyr revision.
Now codec2 dependency is enabled also for T-TWR build, enabling to build
it from scratch without first building a Miosix target.
Enabled non-cross build to use codec2 compiled sources.
Begin implementing PMU, now successfully read and write registers, need
to implement button functionality, battery voltage readout, charge
detection etc.
TG-553
Now radio tool is checked out, compiled and used as a submodule,
removing the need of installing it as an external dependency and
ensuring consistency in the tool version.