Use SPDX ids for several licenses.

Signed-off-by: enyst <engel.nyst@gmail.com>
Renamed software licenses with SPDX ids.

Signed-off-by: enyst <engel.nyst@gmail.com>
Last renames to SPDX ids for .json files.

Signed-off-by: enyst <engel.nyst@gmail.com>