wormchain: tokenbridge: Check for base denom in GetWrappedCoinMeta

The base denom for wrapped tokens is prefixed with "b".  Check for this
in GetWrappedCoinMeta so that we don't end up treating base denom tokens
as native tokens.

wormhole_chain/x/tokenbridge/types/asset.go

@@ -101,7 +101,7 @@ func GetWrappedCoinMeta(identifier string) (tokenChain uint16, tokenAddress [32]
 	if len(parts) != 3 {
 		return 0, [32]byte{}, false
 	}
-	if parts[0] != "wh" {
+	if parts[0] != "wh" && parts[0] != "bwh" {
 		return 0, [32]byte{}, false
 	}
 	if len(parts[1]) != 5 {

wormhole_chain/x/tokenbridge/types/asset_test.go

@@ -1,6 +1,8 @@
 package types
 
 import (
+	"encoding/hex"
+	"fmt"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -87,6 +89,13 @@ func TestGetWrappedCoinMeta(t *testing.T) {
 			tokenAddress: [32]byte{},
 			wrapped:      false,
 		},
+		{
+			name:         "base denom",
+			identifier:   fmt.Sprintf("bwh/00008/%s", hex.EncodeToString(testToken[:])),
+			tokenChain:   8,
+			tokenAddress: testToken,
+			wrapped:      true,
+		},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {