Changes to List custom fields

added the enum value _count to the property /propertyNames/ of the query request parameter select

added the enum value categories to the property /propertyNames/ of the query request parameter select

added the enum value contacts_custom_fields to the property /propertyNames/ of the query request parameter select

added the enum value custom_field_types to the property /propertyNames/ of the query request parameter select

added the enum value field_type to the property /propertyNames/ of the query request parameter select

added the enum value id to the property /propertyNames/ of the query request parameter select

added the enum value name to the property /propertyNames/ of the query request parameter select

added the enum value ranking to the property /propertyNames/ of the query request parameter select

added the enum value user_id to the property /propertyNames/ of the query request parameter select

added the enum value views to the property /propertyNames/ of the query request parameter select

added the enum value workspace_id to the property /propertyNames/ of the query request parameter select

added the optional property data/custom_fields/items/workspace_id to the response with the 200 status

api operation id listCustomFieldsV1 was added

added the non-success response with the status 409