Use Explodes instead of WithBuildingExplosion in TS

Additionally, make Refinery and Tib Silo spawn tiberium on destruction unless empty.

mods/ts/rules/defaults.yaml

@@ -126,8 +126,10 @@
 		DamagedSounds: expnew01.aud
 		DestroyedSounds: crmble2.aud
 	WithSpriteBody:
-	WithBuildingExplosion:
-		Sequences: building, large_bang, large_brnl, verylarge_clsn, large_tumu
+	Explodes:
+		Weapon: BuildingExplosions
+		EmptyWeapon: BuildingExplosions
+		Type: Footprint
 	EngineerRepairable:
 	ShakeOnDeath:
 	AcceptsSupplies:

mods/ts/rules/shared-structures.yaml

@@ -107,6 +107,8 @@ PROC:
 		FactionImages:
 			gdi: proc.gdi
 			nod: proc.nod
+	Explodes:
+		Weapon: TiberiumExplosion
 
 GASILO:
 	Inherits: ^Building
@@ -150,6 +152,8 @@ GASILO:
 		Amount: -10
 	SelectionDecorations:
 		VisualBounds: 80, 48, -5, 0
+	Explodes:
+		Weapon: TiberiumExplosion
 
 ANYPOWER:
 	AlwaysVisible:

mods/ts/weapons/explosions.yaml

@@ -34,6 +34,13 @@ UnitExplodeSmall:
 		SmudgeType: SmallCrater
 		InvalidTargets: Building, Wall
 
+BuildingExplosions:
+	Warhead@1Eff: CreateEffect
+		Explosions: building, large_bang, large_brnl, verylarge_clsn, large_tumu
+		ExplosionPalette: effectalpha75
+	Warhead@2Smu: LeaveSmudge
+		SmudgeType: MediumCrater
+
 CyborgExplode:
 	Warhead@1Eff: CreateEffect
 		Explosions: medium_bang