[ADF-1534] Automatic PDF rendering for unsupported types. (#2313)

* move viewer dialog to a separate folder

* make dialog take full screen size

* automatic PDF conversion

* mime type icon in the title

* [ADF-1530] correct plain text viewer resolving

* separate lightweigh pdf view for the dialog

ng2-components/ng2-alfresco-viewer/src/components/viewer-dialog/viewer-dialog.settings.ts

@@ -0,0 +1,25 @@
+/*!
+ * @license
+ * Copyright 2016 Alfresco Software, Ltd.
+ *
+ * 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.
+ */
+
+export interface ViewerDialogSettings {
+    fileUrl?: string;
+    fileMimeType?: string;
+    fileName?: string;
+    downloadUrl?: string;
+
+    nodeId?: string;
+}