all: add missing SPDX license to all files

Convert the old ".reuse/dep5" format to REUSE.toml format using
"reuse convert-dep5" command.

For generated files, add the ".license" file.

Using "reuse annotate ..." it automatically add empty line after
"SPDX-FileCopyrightText:", and it also put "SPDX-FileCopyrightText" above
the "SPDX-License-Identifier".

Now, this project is compliant with version 3.3 of the REUSE
Specification.

1 files changed, 1 insertions, 0 deletions

diff --git a/forwarder.go b/forwarder.go
index b9b08b6..1c97abb 100644
--- a/forwarder.go
+++ b/forwarder.go
@@ -1,4 +1,5 @@
 // SPDX-FileCopyrightText: 2019 M. Shulhan <ms@kilabit.info>
+//
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 package haminer