Happy new year (#7814)

* Happy new year

Updates the copyright years and fixes wrong license headers.

* Fix the template

* Split HEADER into HEADER-APACHE & HEADER-GPL

substrate/bin/node/bench/src/state_sizes.rs

@@ -1,18 +1,20 @@
-// Copyright 2015-2020 Parity Technologies (UK) Ltd.
-// This file is part of Parity.
+// This file is part of Substrate.
 
-// Parity is free software: you can redistribute it and/or modify
+// Copyright (C) 2020-2021 Parity Technologies (UK) Ltd.
+// SPDX-License-Identifier: GPL-3.0-or-later WITH Classpath-exception-2.0
+
+// 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.
 
-// Parity is distributed in the hope that it will be useful,
+// 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
+// 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 Parity.  If not, see <http://www.gnu.org/licenses/>.
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
 
 /// Kusama value size distribution
 pub const KUSAMA_STATE_DISTRIBUTION: &'static[(u32, u32)] = &[
@@ -4753,4 +4755,4 @@ pub const KUSAMA_STATE_DISTRIBUTION: &'static[(u32, u32)] = &[
 	(1516670, 1),
 	(1605731, 1),
 	(1605821, 1),
-];
+];