Integrate obfuscation package

mtglib/internal/dc/addr.go

@@ -1,10 +1,17 @@
 package dc
 
+import (
+	"fmt"
+
+	"github.com/9seconds/mtg/v2/mtglib/internal/obfuscation"
+)
+
 type Addr struct {
-	Network string
-	Address string
+	Network    string
+	Address    string
+	Obfuscator obfuscation.Obfuscator
 }
 
 func (d Addr) String() string {
-	return d.Address
+	return fmt.Sprintf("addr=%s, secret=%v", d.Address, d.Obfuscator.Secret)
 }