* Move the visitation flags, Record Attack/NiGHTS Attack data, and emblem checking to outside of Y_StartIntermission.
* Y_CleanupScreenBuffer never got called for maps which skip the intermission, leading to a small memory leak; this is now fixed by moving it to G_AfterIntermission.
* Y_FollowIntermission was just G_AfterIntermission with modeattacking specific behaviour, but this is desired for all places where G_AfterIntermission is called, so just merge this into G_AfterIntermission.
Notably, these changes are necessary because there are now three maps in the main SP campaign which do not end with traditional intermissions. As a result, this fixes an issue where Black Core's tracks are not available in the Sound Test (due to MV_BEATEN never being applied).
Also, since I was here: Remove "gotperfect" from recorddata_t. This is a duplicate of `mapvisited[gamemap-1] & MV_PERFECT` which uses more memory. I have kept the new spacing in the gamedata for compatibility with RC1 savedatas, but moved it across to the original method everywhere else.
https://cdn.discordapp.com/attachments/405336003239477249/641295998395613224/srb20042.gif
* Port MUSICDEFs from Kart.
* Safe to modify without modifying game, so we can put it in music.dta eventually.
* "Title", "AltTitle", "Authors" fields are self-evident.
* "Soundtestpage" and "Soundtestcond" are used to determine which sound test unlockable can play them (set with Unlockable's variable, just like Level Select).
* "Stoppingtime" and "BPM" both accept floats, and are used for presentation stuff on the sound test.
* Ironically, we don't share a single field name with them. Such is the case of differing foci, though, and I expect they'll change their implementation to match (since this is necessary for a sound test).
* Change how S_AddSoundFx works to avoid iterating through all of them, and to allow cv_soundtest to only scroll through defined slots (instead of the infinite wall of thok sounds when scrolling to the left).
* Change V_DrawFixedPatch to allow scaling on two seperate axes.
* Now called "V_DrawStretchyFixedPatch".
* "V_DrawFixedPatch" is a macro to V_DrawStretchyFixedPatch now (same scale on both axes).
* Available to Lua under v.drawStretched!
* Even works in GL!
* Bugfix: Add SR_PLAYER to SOC's menutypes_list.
Stay tuned for the merge request, where I put the onus on the Music Team to finish this off...
* Sometimes, D_MapChange is passed a mapnum of -1, to complete an existing mapchange. Don't handle botingame checks when that happens.
* Disable charsel on secret level platter when selected map is a NiGHTS stage, since gameplay will be identical across characters (consistent with NiGHTS Attack).
Also:
* Replace IT_DYBIGSPACE hack in M_SetupChoosePlayer, and replace with a more direct workaround system for not being able to select characters before warping.
