Monorepo scaffolding (#16)

* Change scaffolding

* Fix gh action

common/network.go

@@ -0,0 +1,25 @@
+package common
+
+type Network struct {
+	Name     string
+	SecKey   string
+	PubKey   string
+	RelayKey string
+	Addr     string
+}
+
+var MainNet = Network{
+	Name:     "mainnet",
+	SecKey:   "asec",
+	PubKey:   "apub",
+	RelayKey: "arelay",
+	Addr:     "ark",
+}
+
+var TestNet = Network{
+	Name:     "testnet",
+	SecKey:   "tasec",
+	PubKey:   "tapub",
+	RelayKey: "tarelay",
+	Addr:     "tark",
+}