added code for note widget

Widgets/notes/addNote.html

@@ -0,0 +1,31 @@
+<form [formGroup]="editEntity" (ngSubmit)="save()" class="edit-entity-form">
+    <mat-toolbar fxLayout="row" color="primary">
+      <h2>New Note</h2>
+      <span fxFlex></span>
+      <button mat-icon-button (click)="cancel()" type="button">
+        <mat-icon class="material-icons">close</mat-icon>
+      </button>
+    </mat-toolbar>
+    
+    <div style="height: 4px;" *ngIf="!(isLoading$ | async) && !loading"></div>
+    <div mat-dialog-content fxLayout="column">
+      <div formGroupName="attributes" fxLayout="column">
+        <textarea formControlName="note" rows="5" cols="50"></textarea>
+      </div>
+    </div>
+    <div mat-dialog-actions fxLayout="row" fxLayoutAlign="end center">
+      <button mat-button mat-raised-button color="primary"
+              type="submit"
+              [disabled]="(isLoading$ | async) || editEntity.invalid || !editEntity.dirty">
+        Save
+      </button>
+      <button mat-button color="primary"
+              type="button"
+              [disabled]="(isLoading$ | async)"
+              (click)="cancel()" cdkFocusInitial>
+        Cancel
+      </button>
+    </div>
+    
+  </form>
+