linagora#138 copy all module parts related to avatar edition

The file is src/frontend/js/modules/avatar/avatar-edition.js
The angular module name is esn.avatar.edition

src/frontend/js/modules/avatar/avatar-edit-modal.pug

@@ -0,0 +1,12 @@
+.modal.center.fade.in.modal-profile-avatar(tabindex="-1", role="dialog", id="edit-avatar-dialog")
+  .modal-dialog
+    .modal-content
+      .modal-header
+        button.close(type="button", ng-click="$hide()") ×
+        h4.modal-title(ng-hide="uploading") {{ 'Edit your avatar' | translate }}
+        h4.modal-title(ng-show="uploading") {{ 'Updating your avatar' | translate }}...
+      .modal-body.overflow-none
+        avatar-picker(avatar-placeholder="{{avatarURL}}")
+      .modal-footer(ng-hide='uploading')
+        button.btn.btn-link.color-default(type="button", ng-disabled="uploading", ng-click="$hide()") {{ 'Cancel' | translate }}
+        button.btn.btn-primary(type="button", ng-disabled="uploading || !preview", ng-click="upload()") {{ 'Update' | translate }}