Let players bust bustable FOFs again

Closes #351

See merge request KartKrew/Kart!945

Fix tunes -default to use stored RNG value

See merge request KartKrew/Kart!951

Add Gacha Bom sprites

See merge request KartKrew/Kart!950

Add fuse to Pogo Spring

See merge request KartKrew/Kart!942

- Add flags variable to toggle much of Orbinaut behavior.
- Don't spawn afterimages for Gacha Bom.
- Animate facing angle of Gacha Bom when thrown backward.
- Let tossed Gacha Bom drive forward after landing.

Fix typo causing crash on tumble interrupt

See merge request KartKrew/Kart!949

Remove Garden Top grounded arrow

Closes #441

See merge request KartKrew/Kart!943

Turn on RANGECHECK in all builds

See merge request KartKrew/Kart!944

Skinchange Spectatorify

Closes #305

See merge request KartKrew/Kart!936

Fix perfstats 4 not working properly

See merge request KartKrew/Kart!932

Fix crash if navigating profiles menu too quickly

See merge request KartKrew/Kart!939

15 seconds, flickers for the last second.

Kickstart Clear

See merge request KartKrew/Kart!938

Normalize magician box offsets

See merge request KartKrew/Kart!941

Fix Magician Box offset while on Garden Top

See merge request KartKrew/Kart!940

Few tweaks and bug fix to Garden Top

See merge request KartKrew/Kart!937

When exiting a card, once the transition ends, there was
a 1 tic window that an A press could select a card and
THEN set the profile pointer to NULL.

- M_ProfileControlSaveResponse: Set without stealth (ie, call command which sends XD_WEAPONPREF netxcmd)
- weaponPrefChange (and its splitscreen ilk): Only build/send XD_WEAPONPREF command when Playing()

Two arrows. One above the player, floating. One below the
player, on the ground.

Both arrows use the player's facing angle. Arrows are only
visible to their own player (other players can't see them).

The floating arrow is a papersprite. You can see the arrow
turn with you as you turn your camera.

The grounded arrow is a splat with additive blending. It
tilts to match the slope of the ground you're driving on.

Don't let testers shoot themselves in menus

See merge request KartKrew/Kart!934

Matches cvar updates in real time, so can't change what's written to setup_chargrid

Alter blue spark color

See merge request KartKrew/Kart!935

- Got_NameAndColor: Incorporate check for cv_restrictskinchange and FREE PLAY
- CanChangeSkin: Boil away all the useless conditions, combine with CanChangeSkinWhilePlaying