Custom map names

Backwards compatible:

• Levels 1 to 1035 are named MAP01 to MAPZZ

Backwards incompatible:

• Do not use level 1100 in G_ExitLevel or G_SetCustomExitVars; use "SCENE_TITLE" instead.
• Do not use level 1101 in G_ExitLevel or G_SetCustomExitVars; use "SCENE_EVALUATION" instead.
• Do not use level 1102 in G_ExitLevel or G_SetCustomExitVars; use "SCENE_CREDITS" instead.
• Do not use level 1103 in G_ExitLevel or G_SetCustomExitVars; use "SCENE_ENDING" instead.

New:

• Updated to support map names:
  • map console command
  • Lua functions:
    • G_BuildMapName
    • G_BuildMapTitle
    • G_ExitLevel
    • G_SetCustomExitVars
  • SOC LEVEL:
    • Header line
    • NEXTLEVEL
  • SOC EMBLEM:
    • MAPNUM
  • SOC UNLOCKABLE:
    • VAR (if TYPE is WARP)
  • SOC CONDITION:
    • MAPVISITED, MAPBEATEN, MAPALLEMERALDS, MAPULTIMATE, MAPPERFECT
    • MAPSCORE, MAPTIME, MAPRINGS
    • NIGHTSSCORE, NIGHTSTIME, NIGHTSGRADE
  • SOC MAINCFG:
    • SPSTAGE_START
    • SPMARATHON_START
    • SSTAGE_START
    • SMPSTAGE_START
    • TITLEMAP
    • BOOTMAP
    • TUTORIALMAP
• Added G_GetMapThumbnail and G_GetMapThumbnailWide to Lua
• For named maps:
  • Use [MAPNAME]_PIC instead of MAPXXP
  • Use [MAPNAME]_WIDEPIC instead of MAPXXW
  • Use [MAPNAME]_METALREPLAY instead of MAPXXMS
  • The default map music name matches the map name (example: O_MP_JADEVALLEY instead of O_MAPJVM.)
• Increased maximum music name length from 6 to 64

Example addon: mp_jadevalley.pk3