Refactoring

Move Top Played part.
Move pipes and dashboard
Rename object folder to model
Doc pipes

dashboard/src/app/song-table/song-table.component.ts

@@ -1,7 +1,7 @@
 import { Component, EventEmitter, Input, Output } from '@angular/core';
 
-import { Song } from './../object/song';
-import { SortByPipe } from './../sort-by.pipe';
+import { Song } from './../model/song';
+import { SortByPipe } from './../pipes/sort-by.pipe';
 
 @Component({
   selector: 'app-song-table',
@@ -14,7 +14,7 @@ export class SongTableComponent {
 
   // To activate button in interface var
   bottomReached = false;
-  private sortable: boolean;
+  sortable: boolean;
 
   constructor() { }