[AE/osxsink]- when scoring a streamFormat - take samplerate into account - fixes some formats with optical which don't support 96000Hz
[osx/tests]- add unit tests for scorestream of AESinkDARWINOSX
Merge pull request #4950 from Memphiz/osxfixoptical

[AE/osxsink] - fix wrong samplerate selection