Camera: Create extended scene mode in lieu of standalone bokeh mode

Migrate BOKEH_MODE_STILL_CAPTURE and BOKEH_MODE_CONTINUOUS to be 2 enums
of CONTROL_EXTENDED_SCENE_MODE.

Bug: 151759402
Test: Camera VTS, CTS
Change-Id: Ic62b072d62a46ba61c109c374e530d6c11786230
5 files changed