Unable to show correct device icon in Output Switcher

-Media framework does not report "TYPE_GROUP" when selecting a group
of Chromecast devices or the StaticGroup
-MediaRouter2Info::getType() does not provide correct types for group
and video
-Add "getDrawableResIdByFeature()" to get correct type icon
-Use MediaRouter2Info::getFeatures() to get device type
-Designer updates the video icon

Bug: 160113560
Test: make -j50 RunSettingsLibRoboTests
Change-Id: I1c8e9c2729013b9ee49b664e40c04550f315a516