Show more info as optional PFD overlays

[pchickey]

More info which could be useful on the PFD:

• Mission Time
• Throttle level
• GPS #Satellites, HDOP

[osmogr]

Could the "Full PFD" page be split off so there is not the maps drawn behind it?

So Overview would have a basic pfd with maps, PFD would just be PFD objects without maps drawn behind, and Map would get the full map page.