Desired: changes in geofence and failsafe for plane

#### Issue details
1 - It would be nice to have a geofence setup page under SETUP just as it is done in Copter.
2 - In the failsafe configuration page, it is only possible to change FS_GCS_ENABLE, FS_SHORT_ACTION and FS_LONG_ACTION to 0 or 1 using the boxes, but this parameters have more options. So maybe add a dropdown list to change this parameters instead of the box. And also add FS_SHORT_TIMEOUT and FS_LONG TIMEOUT.
3 - I would appreciate if someone can tell me what is the ALT WART (in Plan page) button meant to do.

#### Version
Mission planner 1.3.73 and Plane 4.0.6

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

#### Airframe type
Tiltrotor

#### Hardware type
Black cube

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

Start by comparing the Plane SETUP pages with the existing Copter geofence setup page, then inspect the Plane failsafe configuration page and the Plan page's ALT WART control. Confirm the supported options for FS_GCS_ENABLE, FS_SHORT_ACTION, FS_LONG_ACTION, FS_SHORT_TIMEOUT, and FS_LONG_TIMEOUT before defining the UI changes; done means all requested Plane controls are available and ALT WART has an understood description.

Written by the indexing model from the issue text.