Libvpx is built with configure script and make.
Unfortunate but the configure script is very dense and I'm
not sure if it's worth translating into CMake, since it
apparently does CPU detection for optimizations.

Tripwire anti-cheese

See merge request KartKrew/Kart!968

Desperation spindash

See merge request KartKrew/Kart!967

Fix ACS includes

See merge request KartKrew/Kart!963

Debounce cmd latency in local camera prediction

See merge request KartKrew/Kart!965

Let Lightning Shield destroy SPB

Closes #427

See merge request KartKrew/Kart!933

Only draw capsule icon for Break the Capsules HUD tracking

See merge request KartKrew/Kart!964

A bit of a problem still, because I noticed that k_roulette.c isn't matched with our google doc. But this should be less annoying for now

Fix CMake build on Ubuntu 20.04

See merge request KartKrew/Kart!948

Use intermittent Gachabom in boss item table

See merge request KartKrew/Kart!954

Refactor kitemcap

See merge request KartKrew/Kart!955

Refactor capsule HUD tracking code to C++

See merge request KartKrew/Kart!956

Don't FAULT outside of Race modes

See merge request KartKrew/Kart!959

Add 5 second fuse for empty kart, flickers right before despawning

See merge request KartKrew/Kart!961

Add more details to R_DrawVisSprite RANGECHECK message

See merge request KartKrew/Kart!946

Generate a backtrace for I_Error; add a crash command

See merge request KartKrew/Kart!947

More UFO FX

See merge request KartKrew/Kart!960

Contact-transfer eggboxes

See merge request KartKrew/Kart!958

Change Random map vote to "don't care"

See merge request KartKrew/Kart!953

HUD track UFO catcher; hide TARGET text in 3P and 4P splitscreen

See merge request KartKrew/Kart!957

- Use std::vector instead of fixed size array.
- Use std::sort instead of custom sorting algorithm.

- Don't clear every tic. This is what P_RemoveTracker is
  for.
- Link in P_SpawnMobj. Should cover all cases.
- Remove excess objects. These were leftover from when
  Shrink destroyed items. Just track Jawz, SPB and Break
  the Capsules.