New features

WIP codebase for a migration path of Panelizer to core's Layout Library system, plus other 3rd party modules.

Added link back to login page from registration page.
Issue #2872867 by rhristov, Pavan B S: Replace all calls to db_(), which is deprecated
Issue #2929314: Wrong String for forget password
Issue #2925502: Replace deprecated calls to Drupal::l (link generation)
Issue #2927437 by vinod_kc: Fix coding standard related errors
Issue #2914212 by ironsizide: Moving message and alert prepends out of super-login.js
Issue #2912768 by ironsizide: setValues incorrectly using arrays
Issue #2901040 by volkswagenchick: .info file typo

#2959882 Map Yext fields to Drupal field

Issue #2969284: Add sarnia_term support for facetapi_multiselect and facetapi_select modules