Vnc (#2226)

* [Update] 优化授权协议, 支持vnc

* [Update] 添加协议vnc

* [Update] 修改系统用户添加

* [Update] 修改vnc信息

apps/perms/forms.py

@@ -12,8 +12,6 @@ from .models import AssetPermission
 class AssetPermissionForm(OrgModelForm):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
-        if 'initial' not in kwargs:
-            return
         users_field = self.fields.get('users')
         if hasattr(users_field, 'queryset'):
             users_field.queryset = current_org.get_org_users()