XX-3183 / Move Contact to crypto

api/authenticatedChannel.go

auth/callback.go

auth/confirm.go

auth/request.go

auth/verify.go

bindings/authenticatedChannels.go

bindings/client.go

bindings/contact.go

bindings/list.go

bindings/ud.go

cmd/getndf.go

cmd/root.go

cmd/single.go

cmd/ud.go

go.mod

go.sum

interfaces/auth.go

interfaces/contact/contact.go

interfaces/contact/contact_test.go

interfaces/user/user.go