[MM-57295] Bulk export: add roles and permission schemes (#26523)

* Bulk export: add roles and permission schemes

* Update mmctl docs

* Fix log

* Update mmctl tests

* Update mmctl unit tests

* Refactor to avoid extra calls

* Update translations

* Add test case

* Fix test

* Fix test

server/i18n/en.json

@@ -5474,6 +5474,10 @@
     "id": "app.import.import_line.null_post.error",
     "translation": "Import data line has type \"post\" but the post object is null."
   },
+  {
+    "id": "app.import.import_line.null_role.error",
+    "translation": "Import data line has type \"role\" but the role object is null."
+  },
   {
     "id": "app.import.import_line.null_scheme.error",
     "translation": "Import data line has type \"scheme\" but the scheme object is null."
@@ -6662,6 +6666,10 @@
     "id": "app.scheme.get.app_error",
     "translation": "Unable to get the scheme."
   },
+  {
+    "id": "app.scheme.get_all_page.app_error",
+    "translation": "Unable to get page of schemes."
+  },
   {
     "id": "app.scheme.permanent_delete_all.app_error",
     "translation": "We could not permanently delete the schemes."
@@ -9790,6 +9798,10 @@
     "id": "model.reporting_base_options.is_valid.bad_date_range",
     "translation": "Date range provided is invalid."
   },
+  {
+    "id": "model.scheme.is_valid.app_error",
+    "translation": "Invalid scheme."
+  },
   {
     "id": "model.search_params_list.is_valid.include_deleted_channels.app_error",
     "translation": "All IncludeDeletedChannels params should have the same value."