feat: try to add the elfinder

package.json

@@ -69,8 +69,8 @@
     "zone.js": "0.8.20"
   },
   "devDependencies": {
-    "@angular-devkit/core": "0.0.28",
-    "@angular-devkit/schematics": "0.0.42",
+    "@angular-devkit/core": "^0.4.2",
+    "@angular-devkit/schematics": "^0.4.2",
     "@angular/cli": "^1.7.3",
     "@angular/compiler-cli": "5.2.0",
     "@angular/language-service": "5.2.0",

src/app/app.module.ts

@@ -29,6 +29,8 @@ import {ElementPopupComponent} from './elements/popup/popup.component';
 import {ElementRdpComponent} from './elements/rdp/rdp.component';
 import {ElementServerMenuComponent} from './elements/server-menu/server-menu.component';
 import {ElementIframeComponent} from './elements/iframe/iframe.component';
+import {ElementElfinderComponent} from './elements/elfinder/elfinder.component';
+
 // pages
 import {LoginComponent} from './BasicPage/login/login.component';
 import {IleftbarComponent} from './IndexPage/ileftbar/ileftbar.component';
@@ -94,6 +96,7 @@ import {ConnectPageComponent} from './connect-page/connect-page.component';
     ElementLeftbarComponent,
     ElementOfooterComponent,
     ElementGuacamoleComponent,
+    ElementElfinderComponent,
     LoginComponent,
     SearchComponent,
     SearchFilter,