Camera: Add Hal version 1 sendcommand tests

Tests are needed for verifying 'sendCommand' API call.
Several new test cases will be available:
"sendCommandFaceDetection" - This will check whether face detection is
available and try to enable&disable it.
"sendCommandSmoothZoom" - Will try to verify whether smooth zoom can
be enabled&disabled in case the camera supports it.

BUG: 32022758
Test: compile and run the gtest binary on device
Change-Id: Ib56f363126907f24b1af04187b093aa6c8e8ac99