feat(angular): provide existing angular schematics

Author: imhoffd

packages/@ionic/schematics-angular/collection.json

@@ -3,8 +3,52 @@
     "page": {
       "aliases": ["pg"],
       "factory": "./page",
-      "description": "Create an Ionic page",
+      "description": "Create an Ionic page.",
       "schema": "./page/schema.json"
+    },
+    "class": {
+      "aliases": ["cl"],
+      "extends": "@schematics/angular:class"
+    },
+    "component": {
+      "aliases": ["c"],
+      "extends": "@schematics/angular:component"
+    },
+    "directive": {
+      "aliases": ["d"],
+      "extends": "@schematics/angular:directive"
+    },
+    "enum": {
+      "aliases": ["e"],
+      "extends": "@schematics/angular:enum"
+    },
+    "guard": {
+      "aliases": ["g"],
+      "extends": "@schematics/angular:guard"
+    },
+    "interface": {
+      "aliases": ["i"],
+      "extends": "@schematics/angular:interface"
+    },
+    "module": {
+      "aliases": ["m"],
+      "extends": "@schematics/angular:module"
+    },
+    "pipe": {
+      "aliases": ["p"],
+      "extends": "@schematics/angular:pipe"
+    },
+    "service": {
+      "aliases": ["s"],
+      "extends": "@schematics/angular:service"
+    },
+    "application": {
+      "aliases": ["app"],
+      "extends": "@schematics/angular:application"
+    },
+    "library": {
+      "aliases": ["lib"],
+      "extends": "@schematics/angular:library"
     }
   }
 }