slapos_configurator: Don't remove slapos_hypermedia if installed.

Else it will drop changes from slapos_jio.

master/bt5/slapos_configurator/SkinTemplateItem/portal_skins/slapos_configurator/TemplateTool_getSlapOSMasterBusinessTemplateList.py

@@ -12,6 +12,7 @@ keep_bt5_id_list = ['erp5_ui_test',
                     'erp5_ui_test_core',
                     'slapos_category',
                     'erp5_secure_payment',
+                    'slapos_hypermedia',
                     'vifib_datas']
 
 return bt5_installation_list, bt5_update_catalog_list, keep_bt5_id_list