Added the Yang GUI to GUI2

Change-Id: I843db3838668e21a77837faaf00d4d6834676d8d
diff --git a/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.scss b/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.scss
new file mode 100644
index 0000000..a7834f2
--- /dev/null
+++ b/apps/yang-gui/yang-gui2-lib/lib/yangdetails/yangdetails.component.scss
@@ -0,0 +1,59 @@
+/*
+ * Copyright 2020-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.
+ */
+
+
+#yang-model-details-panel.floatpanel {
+  z-index: 0;
+  right: -750px;
+  width: 744px;
+}
+
+#yang-model-details-panel .container {
+  padding: 8px 12px;
+}
+
+#yang-model-details-panel .close-btn {
+  position: absolute;
+  right: 12px;
+  top: 12px;
+  cursor: pointer;
+}
+
+#yang-model-details-panel .dev-icon {
+  display: inline-block;
+  padding: 0 6px 0 0;
+  vertical-align: middle;
+}
+
+#yang-model-details-panel h2 {
+  display: inline-block;
+  margin: 8px 0;
+  padding-left: 6px;
+  font-size: 16pt;
+  font-weight: lighter;
+}
+
+#yang-model-details-panel h3 {
+  display: inline-block;
+  margin: 8px 0;
+  padding-left: 6px;
+  font-size: 13pt;
+  font-weight: lighter;
+}
+
+#yang-model-details-panel .src-frame {
+  overflow: auto;
+}