Implemented preliminary rules to update permissions for Storages

Somebody with these permissions -> will get these new permissions:
- view_work_packages -> view_file_links
- select_project_modules -> manage_project_storages
- edit_work_packages -> manage_file_links

modules/storages/db/migrate/20220712165928_add_storage_file_link_perms.rb

@@ -0,0 +1,49 @@
+#-- copyright
+# OpenProject is an open source project management software.
+# Copyright (C) 2012-2022 the OpenProject GmbH
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License version 3.
+#
+# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
+# Copyright (C) 2006-2013 Jean-Philippe Lang
+# Copyright (C) 2010-2013 the ChiliProject Team
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; either version 2
+# of the License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+#
+# See COPYRIGHT and LICENSE files for more details.
+#++
+
+require Rails.root.join('db/migrate/migration_utils/permission_adder')
+
+class AddStorageFileLinkPerms < ActiveRecord::Migration[6.1]
+  def up
+    ::Migration::MigrationUtils::PermissionAdder
+      .add(:select_project_modules,
+           :manage_project_storages)
+
+    ::Migration::MigrationUtils::PermissionAdder
+      .add(:view_work_packages,
+           :view_file_links)
+
+    ::Migration::MigrationUtils::PermissionAdder
+      .add(:edit_work_package,
+           :manage_file_links)
+  end
+
+  def down
+    # Nothing to do
+  end
+end