refactor: rename accaddr package to address

crypto/address/codec.go

@@ -0,0 +1,18 @@
+package address
+
+type CoinType uint32
+
+const (
+	// Hardened offset for BIP-44 derivation
+	HardenedOffset uint32 = 0x80000000
+
+	// Registered coin types for BIP-44
+	CoinTypeBitcoin  CoinType = CoinType(0 + HardenedOffset)
+	CoinTypeEthereum CoinType = CoinType(60 + HardenedOffset)
+	CoinTypeSonr     CoinType = CoinType(703 + HardenedOffset)
+)
+
+// Uint32 returns the coin type as a uint32.
+func (c CoinType) Uint32() uint32 {
+	return uint32(c)
+}