Merge pull request #4828 from pchote/cursors

Cursor improvements
Merge pull request #4814 from pchote/descriptions

Update RA production tooltips.
Rename Waypoint -> Immobile and move it into Mods.RA.
Use Immobile for cameras and flares.
Don't render GravityBombs that are obscured by fog.
Rework airstrike flare and camera spawning.
Remove airstrike beacon when the attack begins.