add texId and category setters for DestructableDefinition

thx @chaosy

Author: Frotty

wurst/objediting/DestructableObjEditing.wurst

@@ -26,6 +26,12 @@ public class DestructableDefinition extends W3BDefinition
 	function setTexture(string data)
 		def.setString("btxf",data)
 
+	function setTextureId(int data)
+		def.setInt("btxi",data)
+
+	function setCategory(string data)
+		def.setString("bcat",data)
+
 	function setName(string data)
 		def.setString("bnam",data)