Implement MediaFilter/MediaEvents core path in Tuner Service

Test: tuner sample tis on cuttlefish
Bug: 159067322
Change-Id: I37b7338e8c7b02bbf562f67da81088d07b2a807f
Merged-In: I37b7338e8c7b02bbf562f67da81088d07b2a807f
10 files changed