added a snippet for functions

snippets.json

@@ -68,7 +68,15 @@
 		"scope": "modest",
 		"description": "property",
 		"body": [
-			"property ${1:NAME} = ${2|Pmax,Pmin,Xmax,Xmin,Smax,Smin|}($0)"
+			"property ${1:NAME} = ${2|Pmax,Pmin,Xmax,Xmin,Smax,Smin|}($3);$4"
+		]
+	},
+	"function": {
+		"prefix": "function",
+		"scope": "modest",
+		"description": "function",
+		"body": [
+			"function ${1:RETURN} ${2:NAME}(${3:PARAMETERS}) = ${4:FUNCTION};$0"
 		]
 	}
 }
\ No newline at end of file