[CV] [Unit Testing] Add support for running tests to CMake

What's the issue?
We currently don't provide a way to run unit tests which uses the version of Go (et al) stored in cbdeps, this can cause issues with users on M1 laptops. See this thread for more information.

What's the fix?
We should consider moving out unit test setup/running to CMake so that it honors architecture variables etc setup in the TLM.