gluon-web-model: migrate to SPDX headers for licensing

package/gluon-web-model/javascript/gluon-web-model.js

 /*
-	Copyright 2008 Steven Barth <steven@midlink.org>
-	Copyright 2008-2012 Jo-Philipp Wich <jow@openwrt.org>
-	Copyright 2017 Matthias Schiffer <mschiffer@universe-factory.net>
-
-	Licensed under the Apache License, Version 2.0 (the "License");
-	you may not use this file except in compliance with the License.
-	You may obtain a copy of the License at
-
-	http://www.apache.org/licenses/LICENSE-2.0
+	SPDX-License-Identifier: Apache-2.0
+	SPDX-FileCopyrightText: 2008, Steven Barth <steven@midlink.org>
+	SPDX-FileCopyrightText: 2008-2012, Jo-Philipp Wich <jow@openwrt.org>
+	SPDX-FileCopyrightText: 2017, Matthias Schiffer <mschiffer@universe-factory.net>
+	SPDX-FileCopyrightText: 2023, Leonardo Mörlein <me@irrelefant.net>
 */
 
 /*

package/gluon-web-model/luasrc/usr/lib/lua/gluon/web/model/classes.lua

--- Copyright 2008 Steven Barth <steven@midlink.org>
--- Copyright 2017-2018 Matthias Schiffer <mschiffer@universe-factory.net>
--- Licensed to the public under the Apache License 2.0.
+-- SPDX-License-Identifier: Apache-2.0
+-- SPDX-FileCopyrightText: 2008, Steven Barth <steven@midlink.org>
+-- SPDX-FileCopyrightText: 2017-2018, Matthias Schiffer <mschiffer@universe-factory.net>
+-- SPDX-FileCopyrightText: 2023, Leonardo Mörlein <me@irrelefant.net>
 
 local util = require "gluon.web.util"
 local gluon_util = require "gluon.util"

package/gluon-web-model/luasrc/usr/lib/lua/gluon/web/model/datatypes.lua

--- Copyright 2010 Jo-Philipp Wich <jow@openwrt.org>
--- Copyright 2017 Matthias Schiffer <mschiffer@universe-factory.net>
--- Licensed to the public under the Apache License 2.0.
+-- SPDX-License-Identifier: Apache-2.0
+-- SPDX-FileCopyrightText: 2010, Jo-Philipp Wich <jow@openwrt.org>
+-- SPDX-FileCopyrightText: 2017, Matthias Schiffer <mschiffer@universe-factory.net>
 
 local M = {}