feat(package): added animations to the feedback component

Author: AnthonyNahas

Diff for: README.md

@@ -166,9 +166,10 @@ if(issues || feedback || you_need_more_features){
 - [firebase - v5.x](https://www.npmjs.com/package/firebase)
 - [font-awesome - v4.x](https://www.npmjs.com/package/font-awesome)
 - [angular forms - v6.x](https://www.npmjs.com/package/@angular/forms)
+- [angular animations - v6.x](https://www.npmjs.com/package/@angular/animations)
 
 ```shell 
-npm install --save @ng-bootstrap/ng-bootstrap bootstrap angularfire2 firebase font-awesome @angular/forms
+npm install --save @ng-bootstrap/ng-bootstrap bootstrap angularfire2 firebase font-awesome @angular/forms @angular/animations
 ```
 
 ## Installation

Diff for: gulpfile.js

@@ -349,6 +349,7 @@ gulp.task('rollup-bundle', (cb) => {
         '@angular/core': 'ng.core',
         '@angular/common': 'ng.common',
         '@angular/forms': 'ng.forms',
+        '@angular/animations': 'ng.animations',
 
         // Rxjs dependencies
         'rxjs/Subject': 'Rx',