Enable speed bugs by default in Garmin avionics

The speed bugs in the game’s Garmin avionics should be on by default, and should be persistent across flights.

From @TBCaptain in the Aircraft forum:

This is a useful feature IRL, but is especially useful in a sim when you’re jumping in an airplane without necessarily memorizing v-speeds beforehand.

Good idea!

Make a Zendesk ticket as well!

Delivered in Sim Update 10 with the G1000 NXi becoming standard in the sim code. On stock aircraft with G1000 NXi, speed bugs are automatically displayed in the PFD (i.e., Cessna Skyhawk SP G1000).