* tests: new built-in test runner
* tests: update tests for new builtin test api
* tests: print test suite logs
* tests: remove cmocka from build files
* tests: colorize test suite log and remove redundant prints
* _mul: multiply two vector (replacement for _mulv)
* _div: div two vector
* _divs: div vector with scalar
* adds: add scalar to each components of vec
* subs: sub scalar from each components of vec