ubirch-protocol implementation for Go

This implementation used the ECDSA ECC curve also used in our SIM card implementation.

how to publish a version for deployment

go mod tidy
git tag ubirch/vx.y.z
git push origin ubirch/vx.y.z
go list -m github.com/ubirch/ubirch-protocol-go/ubirch/vx@vx.y.z

where x.y.z is the version number