[master] add pchids not-exist-in-any-template in the response of edit_fcp_template API

[wngzhe]

code change: change return of edit_fcp_template add orphan values in return value dict

result example:

{
              'fcp_template': {
                'name': 'bjcb-test-template',
                'id': '36439338-db14-11ec-bb41-0201018b1dd2',
                'description': 'This is Default template',
                'host_default': True,
                'storage_providers': ['sp4', 'v7k60'],
                'min_fcp_paths_count': 2,
                'pchids': {
                    'add' : ['C'],
                    'delete' : {
                        'all': ['D', 'E'],
                        'not_exist_in_any_template': ['F']
                    },
                    'all' : ['A', 'B', 'C']
                }
              }
            }

[jackydalong]

suggest

1. changing the title from

   change return of edit_fcp_template add orphan values in return value dict

   to

   add pchids not-exist-in-any-template in the response of edit_fcp_template API

2. add the following example to the original comment

   {
   'fcp_template': {
       ...
       'pchids': {                  
           'add' : ['C'],                       
           'delete' : {                             
               'all': [D, E],                    
               'not-exist-in-any-template': [D]  <--- pchids not exist in any template
           },
           'all' : ['A', 'B', 'C']              
        }
   }
   }

   @wngzhe