* Gave lifedistribution a "Sharing" option to go along with its previous individual and stealing options.
* Made the game over graphic and music only happen if everyone's out of lives if you're sharing or stealing lives.
* Fixed a bug where game over wouldn't come to fruition because it kept on happening each tic of the countdown2.
* Made spectator stuff display in Co-op splitscreen.
* Make setting steallives to true respawn every game overed spectator.
* Make a minimum on the number of lives GetLives can get you.
* Add "You'll steal a life on respawn" to spectator screen.
* Make sure that a life theft always takes you from 0 (or less) lives to 1 life.
* Fix a bracket level typo that meant new Co-op style respawning was being done for all gametypes.
* P_GiveCoopLives bundles the coop lives reward for everyone versus reward for one person in other gametypes thing into one function. Available in Lua.
Needs a bunch of changes to HUD rendering, especially in splitscreen, which doesn't try to show spectator stuff whatsoever. Also, if you're the player whose respawn determines when the map reloads, you'll see the spectator text during the front half of the fade. Unless, of course, it's 2-player mode.
* cv_sharedstarposts - Makes everyone share starposts, defaults to "On"
* cv_respawntype - Defaults to "Starpost". If set to that, people respawn at the starpost you just hit (assuming cv_sharedstarposts is on - may have to combine the two variables later, but seperate for testing for now). The other option is the old, unrestricted spawning. We COULD add TD bubble spawning at a later time using this variable, though.
The level DOES reset if everyone dies, but not in a way which allows for Mystic Realm style non-resetting resets. I'll handle that later.
Endgame code refactor
This is mostly just some code cleanup and moving about:
* `Y_EndGame` was moved from from y_inter.c/h to g_game.c/h, and renamed to `G_EndGame`. Frankly the old place that function lived didn't make sense, since it has nothing to do with tally screens directly.
* Most of `Y_FollowIntermission`'s code was removed, because `G_AfterIntermission` does it all already.
* And lastly, `G_ExitLevel` uses `HU_ClearCEcho()` instead of `HU_CEcho("")` to clear CEchos from the screen.
The only visible changes in-game from the above should be just that log.txt stops adding empty new lines when you complete a level, and CEchos will always be cleared after tally screens when a level goes to credits/evaluation next.
See merge request !98
SDL fixes and cleanup
Mostly cleanup tbh. I noticed a few things that bugged me when examining SDL's code recently, thought I might as well fix them up a bit.
These changes definitely does not affect netplay, so this can be merged to master just fine.
See merge request !183
Nojumpspin fix
MI can attest to this being a problem that's now solved.
To test, check out root/!LatestSRB2Files/srb2win_branch_jumpfixes.exe and root/MonsterIestyn/robohood.wad.
See merge request !95
R_InitExtraColormaps fix
This fixes the `R_InitExtraColormaps` function so that it correctly realises there are no "extra colormaps" actually in SRB2's files, rather than telling you there are 6 extra colormaps on game startup (or however many WAD files total you have added).
For those who don't know what the function does, it searches for C_START/C_END markers, and if they exist, adds any lumps inbetween to a list of extra colormaps internally. They are never used by the game though, since we last supported colormaps of that kind so long ago I don't think anyone remembers when anymore (definitely more than a decade at least).
Merging to next since I don't know if this would cause any netplay issues or not tbh.
See merge request !182
This is just in case someone actually tries to dump in C_START/C_END and "add" colormaps using them, not that they would ever be used currently anyway.
