[RSDK-9702] - Do not return odd resolutions from GetStreamOptions Response

[seanavery]

Description

Although we can resize to odd resolutions this breaks our h264 encoder pipeline. Prevent odd resolutions by rounding down to nearest even.

Testing

Manually tested we no longer return odd resolutions and resize streams are working.

[randhid]

Do we have a test somewhere that tests and retains the behaviour? Can be a unit test just testing that this thing returns what we're expecting, it's a pretty isolated function.

[seanavery]

@randhid Added test cases to verify we do not get odd dims.