Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Map gimbal controls
Keep track of gimbal position within Vehicle

Keep track of recording time if camera doesn't provide it.
Make sure camera info is received (if camera ACKs the request)
Keep track of camera's heartbeat. Remove camera if not heard from after a while.
Update MAVLink

Added (UI) support for vehicles exposing more than one camera.

Split save mission to Json file in two so you have the option to saving it to a file or to a QByteArray Json blob.
Virtualize all camera functions to allow deeper access.

Handle initial storage
Handle image/video capture and storage.