Update readme

See merge request KartKrew/Kart!2243

Fix double free in F_DisclaimerDrawScene

See merge request KartKrew/Kart!2242

Fix remaining bugs with splitscreen GP GAME OVER

Closes #1251

See merge request KartKrew/Kart!2241

Fix mismatched Lua lookup array for karthud constants

See merge request KartKrew/Kart!2240

- Cases for lives specifically and not retrying use
  G_GametypeUsesLives
  - Such as HUD elements and GAME OVER

- Cases for retrying and losing lives use
  G_GametypeAllowsRetrying
  - Such as GP bonus rounds

- If splitscreen player spawns GAME OVERed, make absolute
  certain they appear in last place and don't affect any
  higher positions

Fix splitscreen GP GAME OVER visual bugs

Closes #1247

See merge request KartKrew/Kart!2239

- Slide-in is always based off of player 1, who may have
  GAME OVERED before the race even started thus hiding the
  minimap

- Does not interfere with destroyed kart explosion

Simpler solution to #1225: If a retry flag occurs in a demo, stop playback immediately!

See merge request KartKrew/Kart!2230

Additional hack for Sealed Star game over: In demo.playback, do a retry flag anyways, just to guarantee it ends

Also guarantee it uses demo.netgame status where relevant

Add a bunch more statistics

See merge request KartKrew/Kart!1973

Basically just for testing this branch, at this rate

Ugly but releasable

No indirect, hard-to-maintain magic number range in modetimeplayed arrays

- SPB: The standard set-up has ATTACKING_TIME in addition to ATTACKING_SPB, so the _TIME check first prevented it from ever being ticked
- SPB: Check for encoremode instead of ATTACKING_SPB, to cover Versus SPB as well
- All Attacking modes: Check for != ATTACKING_NONE just in case we add other potential modeattacking configurations later

Challenge Condition final hardcoded adjustments

See merge request KartKrew/Kart!2236

Prison Egg tutorial bump exception

See merge request KartKrew/Kart!2237

"Last Place Explodes" menu option

Closes #1244

See merge request KartKrew/Kart!2238