Adding Equals override to compare keys and accounts efficiently (#218)

* Adding Equals override to compare keys and accounts efficiently

* Bumping version and fixing PrivateKey Equals

SharedBuildProperties.props

@@ -2,7 +2,7 @@
   xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <Product>Solnet</Product>
-    <Version>0.4.9</Version>
+    <Version>0.4.10</Version>
     <Copyright>Copyright 2021 &#169; Solnet</Copyright>
     <Authors>blockmountain</Authors>
     <PublisherName>blockmountain</PublisherName>

src/Solnet.Wallet/Account.cs

@@ -78,6 +78,14 @@ private static byte[] GenerateRandomSeed()
             return bytes;
         }
 
+        /// <inheritdoc cref="Equals(object)"/>
+        public override bool Equals(object obj)
+        {
+            if (obj is Account account) return account.PublicKey == this.PublicKey;
+
+            return false;
+        }
+
         /// <summary>
         /// Conversion between a <see cref="Account"/> object and the corresponding private key.
         /// </summary>

src/Solnet.Wallet/PrivateKey.cs

@@ -103,6 +103,14 @@ public byte[] Sign(byte[] message)
             return signature;
         }
 
+        /// <inheritdoc cref="Equals(object)"/>
+        public override bool Equals(object obj)
+        {
+            if (obj is PrivateKey pk) return pk.Key == this.Key;
+
+            return false;
+        }
+
         /// <summary>
         /// Conversion between a <see cref="PrivateKey"/> object and the corresponding base-58 encoded private key.
         /// </summary>

src/Solnet.Wallet/PublicKey.cs

@@ -100,6 +100,14 @@ public bool Verify(byte[] message, byte[] signature)
             return Ed25519.Verify(signature, message, KeyBytes);
         }
 
+        /// <inheritdoc cref="Equals(object)"/>
+        public override bool Equals(object obj)
+        {
+            if (obj is PublicKey pk) return pk.Key == this.Key;
+
+            return false;
+        }
+
         /// <summary>
         /// Conversion between a <see cref="PublicKey"/> object and the corresponding base-58 encoded public key.
         /// </summary>