relicense to LGPLv3

Allows resources importing ox_lib to ignore the "same license" condition.
Does not apply to snippets copied from ox_lib into other resources.

fxmanifest.lua

@@ -1,19 +1,3 @@
--- ox_lib
--- Copyright (C) 2021	Linden <https://github.com/thelindat>
-
--- 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 3 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, see <https://www.gnu.org/licenses/gpl-3.0.html>
-
 --[[ FX Information ]]--
 fx_version   'cerulean'
 use_fxv2_oal 'yes'
@@ -24,6 +8,7 @@ game         'gta5'
 name         'ox_lib'
 author       'Linden'
 version      '2.6.0'
+license      'LGPL-3.0-or-later'
 repository   'https://github.com/overextended/ox_lib'
 description  'A library of shared functions to utilise in other resources.'