add option to reset animation state when removing animation from queue

src/lib/MotionEngine.js

@@ -40,9 +40,13 @@ class MotionEngine {
             });
         };
 
-        this.clear = function (object) {
+        this.clear = function (object, reset = false) {
             for (var i = aq.length - 1; i >= 0; i--) {
                 if (object && aq[i].o == object || !object && (aq[i].ct == aq[i].t || aq[i].rr)) {
+                    if (reset){
+                        aq[i].ct = 0;
+                        this.animate(aq[i], 0);
+                    }
                     aq.splice(i, 1);
                 }
             }