CameraITS: Parameterizes sensor fusion tests

Allows specification of the output directory for test files, the number
of times to run the test, and the size of the captured images.

Test: test_sensor_fusion.py and run_sensor_fusion_box.py
Bug: 62838524
Change-Id: I612308ad38ffaaf7a763500626b149ac0f185046
2 files changed