Add new model to operate log (#3546)

* [Update] 添加一下model到operate log, [platform,remoteapppermission,changeauthplan,gatherusertask]

* [Bugfix] 修改了返回platform的几个位置，修改了command execution的url

* [Update] 优化ops task表结构，避免列表页查询几十次sql, 优化了基础的encryptjsonfield

* [Update] 修改adhoc 返回的become字段，避免密码泄露

* [Update] 修改变量名称

apps/assets/migrations/0044_platform.py

@@ -40,6 +40,9 @@ class Migration(migrations.Migration):
                 ('internal', models.BooleanField(default=False, verbose_name='Internal')),
                 ('comment', models.TextField(blank=True, null=True, verbose_name='Comment')),
             ],
+            options={
+                'verbose_name': 'Platform'
+            }
         ),
         migrations.RunPython(create_internal_platform)
     ]