compiler: update x/tools package

Signed-off-by: Evgeniy Stratonikov <evgeniy@nspcc.ru>

pkg/rpc/server/testdata/verify/verification_contract.go

@@ -0,0 +1,14 @@
+package verify
+
+import (
+	"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
+	"github.com/nspcc-dev/neo-go/pkg/interop/util"
+)
+
+// Verify is a verification contract method.
+// It returns true iff it is signed by Nhfg3TbpwogLvDGVvAvqyThbsHgoSUKwtn (id-0 private key from testchain).
+func Verify() bool {
+	tx := runtime.GetScriptContainer()
+	addr := util.FromAddress("Nhfg3TbpwogLvDGVvAvqyThbsHgoSUKwtn")
+	return util.Equals(string(tx.Sender), string(addr))
+}