feat(License): add new headers information about license (#7941)

Co-authored-by: Francesco Borzì <borzifrancesco@gmail.com>

deps/mysql/CMakeLists.txt

@@ -1,5 +1,5 @@
-# Copyright (C) 2008-2019 TrinityCore <https://www.trinitycore.org/>
-# Copyright (C) 2016+     AzerothCore <www.azerothcore.org>, released under GNU AGPL v3 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-AGPL3
+#
+# This file is part of the AzerothCore Project. See AUTHORS file for Copyright information
 #
 # This file is free software; as a special exception the author gives
 # unlimited permission to copy and/or distribute it, with or without
@@ -8,13 +8,14 @@
 # This program is distributed in the hope that it will be useful, but
 # WITHOUT ANY WARRANTY, to the extent permitted by law; without even the
 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+#
 
 if (NOT MYSQL_FOUND)
   message(FATAL_ERROR "MySQL wasn't found on your system but it's required to build the servers!")
 endif()
 
 add_library(mysql STATIC IMPORTED GLOBAL)
- 
+
 set_target_properties(mysql
   PROPERTIES
     IMPORTED_LOCATION