chore(): begin adding ionic components to mono-repo.

packages/ionic-angular/scripts/polyfill/polyfill.dom.js

@@ -0,0 +1,59 @@
+(function(){
+  "use strict";
+
+  if (typeof Element.prototype.matches !== 'function') {
+    Element.prototype.matches = Element.prototype.msMatchesSelector || Element.prototype.webkitMatchesSelector || function matches(selector) {
+      var element = this;
+      var elements = (element.document || element.ownerDocument).querySelectorAll(selector);
+      var index = 0;
+      while (elements[index] && elements[index] !== element) {
+        ++index;
+      }
+      return Boolean(elements[index]);
+    };
+  }
+
+
+  if (typeof Element.prototype.closest !== 'function') {
+    Element.prototype.closest = function closest(selector) {
+      var element = this;
+      while (element && element.nodeType === 1) {
+        if (element.matches(selector)) {
+          return element;
+        }
+        element = element.parentNode;
+      }
+      return null;
+    };
+  }
+
+
+  // requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel
+  // MIT license
+  var win = window;
+  if (!win.requestAnimationFrame) {
+    win.requestAnimationFrame = win.webkitRequestAnimationFrame;
+    win.cancelAnimationFrame = win.webkitCancelAnimationFrame || win.webkitCancelRequestAnimationFrame;
+
+    if (!win.requestAnimationFrame) {
+      win.requestAnimationFrame = function(callback, element) {
+        var currTime = new Date().getTime();
+        var timeToCall = Math.max(0, 16 - (currTime - lastTime));
+
+        var id = win.setTimeout(function() {
+          callback(currTime + timeToCall);
+        }, timeToCall);
+
+        lastTime = currTime + timeToCall;
+        return id;
+      };
+    }
+
+    if (!win.cancelAnimationFrame) {
+      win.cancelAnimationFrame = function(id) {
+        clearTimeout(id);
+      };
+    }
+  }
+
+})();