feature: Added a Rest property to DiscordShardedClient (#1326)

* Added a Rest property to DiscordShardedClient

* Moved the rest client onto the BaseSocketClient

src/Discord.Net.WebSocket/BaseSocketClient.cs

@@ -36,6 +36,11 @@ namespace Discord.WebSocket
         /// </returns>
         public abstract IActivity Activity { get; protected set; }
 
+        /// <summary>
+        ///     Provides access to a REST-only client with a shared state from this client.
+        /// </summary>
+        public abstract DiscordSocketRestClient Rest { get; }
+
         internal new DiscordSocketApiClient ApiClient => base.ApiClient as DiscordSocketApiClient;
 
         /// <summary>

src/Discord.Net.WebSocket/DiscordShardedClient.cs

@@ -37,6 +37,11 @@ namespace Discord.WebSocket
         /// <inheritdoc />
         public override IReadOnlyCollection<RestVoiceRegion> VoiceRegions => _shards[0].VoiceRegions;
 
+        /// <summary>
+        ///     Provides access to a REST-only client with a shared state from this client.
+        /// </summary>
+        public override DiscordSocketRestClient Rest => _shards[0].Rest;
+
         /// <summary> Creates a new REST/WebSocket Discord client. </summary>
         public DiscordShardedClient() : this(null, new DiscordSocketConfig()) { }
         /// <summary> Creates a new REST/WebSocket Discord client. </summary>

src/Discord.Net.WebSocket/DiscordSocketClient.cs

@@ -44,8 +44,10 @@ namespace Discord.WebSocket
         private RestApplication _applicationInfo;
         private bool _isDisposed;
 
-        /// <summary> Provides access to a REST-only client with a shared state from this client. </summary>
+        /// <summary>
-        public DiscordSocketRestClient Rest { get; }
+        ///     Provides access to a REST-only client with a shared state from this client.
+        /// </summary>
+        public override DiscordSocketRestClient Rest { get; }
         /// <summary> Gets the shard of of this client. </summary>
         public int ShardId { get; }
         /// <summary> Gets the current connection state of this client. </summary>