ISTWCMS-4954: updating role permissions to use yml files

src/UwRoles/UwRoles.php

src/UwRoles/yml/user.role.anonymous.yml

src/UwRoles/yml/user.role.authenticated.yml

src/UwRoles/yml/user.role.uw_role_content_author.yml

src/UwRoles/yml/user.role.uw_role_content_editor.yml

src/UwRoles/yml/user.role.uw_role_form_editor.yml

src/UwRoles/yml/user.role.uw_role_form_results_access.yml

src/UwRoles/yml/user.role.uw_role_site_manager.yml

src/UwRoles/yml/user.role.uw_role_site_owner.yml