Add merge function from @eartharoid

Co-authored-by: Isaac Saunders <contact@eartharoid.me>

src/modules/helpers/merge.js

@@ -0,0 +1,19 @@
+export default function deepmerge(...objects) {
+    let target = {};
+
+	const merge = (obj) => {
+		for (let prop in obj) {
+			if (obj.hasOwnProperty(prop)) {
+				if (typeof obj[prop] === 'object') {
+                    target[prop] = deepmerge(target[prop], obj[prop]);
+                } else {
+                    target[prop] = obj[prop];
+                }
+            }
+        }
+	};
+
+	objects.forEach(object => merge(object));
+
+	return target;
+}