16:9 OSD

#### Issue details
With the release of fpv.wtf and MSP OSD, is it possible to have the option to change the OSD screen in MP to reflect the screen size of HD? At the moment, some elements are off-screen in MP and require manual X/Y coordinates. It would be nice to be able to see the full OSD layout in MP when organizing the OSD elements.

#### Version
1.3.77.1

#### Platform
[ X ] All
[ ] AntennaTracker
[ ] Copter
[ ] Plane
[ ] Rover
[ ] Sub

#### Airframe type
Wing

#### Hardware type
Matek F405Wing

#### Logs
_Please provide a link to any relevant logs that show the issue_

No file or test is named. Start by locating Mission Planner's OSD layout editor and the entry points controlling its displayed screen size; done means an optional 16:9/HD view shows the full OSD layout without requiring manual X/Y coordinates.

Written by the indexing model from the issue text.