Support Video Source & Setting Changes Runtime

Various Fixes

Allow core plugin to override palette

Pause and Upload: Move to new plan master controller

Move Analyze view to advanced ui

Fix initial plan loading from vehicle

For Video Streaming usecase, QGroundControl doesnt support changing of
Video Source or URI settings. Restart of QGroundControl application was
required for the changes to get applied. The issue is now resolved by
restarting the video receiver pipeline with new video source/setting.

Signed-off-by: lbegani <lalit.kumar.begani@intel.com>

Fixes from flight testing

Small tweak to kick unit tests

travis-ci linux tests

UT fixes and code fixes for found bugs

Plan: More major re-architecture

This time to handle correctly updating plan/fly view when plan changes

Plan: Survey gimbal

Plan: Sequential upload/down of individual managers

Plan supports transition from offline<->online without losing data