Sprite Fix

[SinsofSloth]

• Fix excessive redrawing
• Separate timers for sprites and scene sprites to have sprites render @ 30 FPS and scene sprites @ 60 FPS, so dialogue animations render more smoothly like the game
• Conditional for frame delay of 0
• Context menu for Map Editor and Map Cell for easier accessibility

Edit: While testing around Map Editor, I noticed a bug when deleting the last spawn from a faction. Just an FYI, in case you weren't aware.

[thane98]

Will look into the bug with factions - thanks for the heads up.