Update copyright and license

LICENSE

node/Cargo.toml

node/build.rs

node/src/chain_spec.rs

node/src/cli.rs

node/src/command.rs

node/src/lib.rs

node/src/main.rs

node/src/rpc.rs

node/src/service.rs

pallets/template/Cargo.toml

pallets/template/README.md

pallets/template/src/benchmarking.rs

pallets/template/src/lib.rs

pallets/template/src/mock.rs

pallets/template/src/tests.rs

runtime/Cargo.toml

runtime/build.rs

runtime/src/lib.rs