[New Feature] Trigger Music Change

[4SGX]

Description:

Implement some tags to control pacing of the soundtrack in the game by changing music depending on amount of any non-Insignificant technotype killed in a [# of frames] window, a superweapon is launched, map event happens, or a TechnoType is created. This is managed by a list in [General] and doesn't change music if one of those songs in that list are already currently playing. See Doom gameplay for more information.

Possible Implementation:

[General]
Action.SongList= <list of songs>
Action.Deaths=5
Action.Timeframe=0.1

[SuperNukeSpecial]
ChangeMusic=yes

[GZEP] ; Giant Boss Kirov
ChangeMusic=yes

; map
[Triggers]
03E8CADC=ChangeMusic,<1 or 0>,Objective 3 Complete,1,1,1,1,0