Ember Plus

....I.....[ZBXNEXT-9168] replaced the software license with AGPL-3.0-only

* commit '88fa49da18c806b028250d5e850302f97ffa8ce9':
  ....I..... [ZBXNEXT-9168] removed unused variable
  ....I..... [ZBXNEXT-9168] fixed Makefile to support new license format
  ....I..... [ZBXNEXT-9168] replaced the software license with AGPL-3.0-only