Some new things for MAPINFO

[Ultimate Freedoomer]

This suggestion is just 2 things regarding the map definition stuff:

• You know how there’s the “InterMusic” flag for map intermission songs? I was wondering if it would also be possible to add parameters for “Entermusic” & “Exitmusic”, for those who REALLY want to make intermissions stand out.
• You know how 1 is able to define where a custom endgame leads in the map definitions? I was wondering if it would be possible to add a parameter to make endgames lead into the next map of the WAD. This would be useful if you’re making an IWAD or PWAD with a Doom 1-style map layout (or which otherwise uses endgames), but you want players to be able to go straight to the next episode without having to select a new game or lose any of their stuff between episodes. This would also be useful for people making machinimas.