Update BaseEntityPhysics.fgd (#272)

Co-authored-by: Erin Sharp <sharpian126@gmail.com>

Author: Trico-Everfire

fgd/bases/BaseEntityPhysics.fgd

@@ -34,7 +34,9 @@
 	disableshadows(boolean) : "Disable Shadows?" : 0 : "Prevent the entity from creating cheap render-to-texture/dynamic shadows."
 	disablereceiveshadows(boolean) : "Disable Receiving Shadows?" : 0 : "Prevents dynamic shadows (e.g. player and prop shadows) from appearing on this entity."
 	modelscale(float) : "Model Scale" : : "A multiplier for the size of the model."
-	
+
+	AllowSilentDissolve[+P2](boolean) : "Allow SilentDissolve input" : 1 : "Allow the SilentDissolve input to dissolve this object."
+
 	linedivider_phys[!engine](string) readonly : "----------------------------------------------------------------------------------------------------------" : ""
 
 	// Inputs
@@ -52,11 +54,15 @@
 	input fademaxdist(float) : "Sets distance at which the entity ends fading. If <0, the entity won't disappear at all. The value will scale appropriately if the entity is in a 3D Skybox."
 	input DisableShadow(void) : "Allows the entity to draw a render target (dynamic) shadow."
 	input EnableShadow(void) : "Prevents the entity from drawing a render target (dynamic) shadow."
-	
+
+	input Dissolve[+P2](void) : "Fizzles the object, firing the OnFizzled output."
+	input SilentDissolve[+P2](void) : "Kills the object immediately, firing the OnFizzled output."
+
 	input AlternativeSorting(boolean) : "Used to attempt to fix sorting problems when rendering. True activates, false deactivates"
 
 	input SetModelScale(vector) : "Sets the scale of the model. Secondary parameter (space delimited) sets the duration of time to scale the model."
 
 	// Outputs
 	output OnIgnite(void) : "Fired when this object catches fire."
+	output OnFizzled[+P2](void) : "Fired when this object is fizzled."
 	]