Change createObject to use the new requireProperties API, and automatically validate the existence of the properties listed in the 'requiredProperties' for an object

src/create-object.js

@@ -3,14 +3,11 @@
 const createEventEmitter = require("create-event-emitter");
 const defaultValue = require("default-value");
 
-const validateSync = require("./validate-sync");
+const requireProperties = require("./require-properties");
 const calculateOriginOffsets = require("./calculate-origin-offsets");
 
 module.exports = function createObject(options) {
-	validateSync(options, {
+	requireProperties(options, ["type", "onRecalculateSize"].concat(defaultValue(options.requiredProperties, [])));
-		type: "required",
-		onRecalculateSize: "required"
-	});
 
 	let object = createEventEmitter(Object.assign({
 		isCached: false,