* Rename `dynapica` TU to `shader`
These unit-tests in particular only actually test
the shader-interpreter and not any of the JITs.
* Conditionally test the shader-jit
In the case that the host supports the shader-jit, the interpreter and the shader-jit will both be tested with the same unit-tests. Allowing for even more coverage.
* Remove weird git submodule
* Initialize catch-2 based unit tests
* Add nihstro submodule
Enabled only during testing to help with assembling shaders in-code.
* Implement `ADD` instruction unit-test
* Add arithmetic/logical instruction unit tests
* Add embedded catch2 submodule
Will use the host catch2 if available.
* Add NotImplemented error code
* Add proper handling of SetAppCpuTimeLimit with invalid params
Set default time limit to 0
* Add AppCpuTimeLimit tests
* Replace spaces with tab
