GUI2 Changed loading screen display to be a component

Change-Id: Id1592b498e6827ec4cd3544dec92e46f00e8d378
diff --git a/web/gui2-fw-lib/projects/gui2-fw-lib/src/lib/layer/loading/loading.component.css b/web/gui2-fw-lib/projects/gui2-fw-lib/src/lib/layer/loading/loading.component.css
new file mode 100644
index 0000000..9095bd2
--- /dev/null
+++ b/web/gui2-fw-lib/projects/gui2-fw-lib/src/lib/layer/loading/loading.component.css
@@ -0,0 +1,28 @@
+/*
+ *  Copyright 2019-present Open Networking Foundation
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+/*
+ ONOS GUI -- Loading Service -- CSS file
+ */
+
+#loading-anim {
+    position: fixed;
+    top: 50%;
+    left: 50%;
+    -webkit-transform: translate(-50%, -50%);
+    transform: translate(-50%, -50%);
+    z-index: -5000;
+}