Added bot authorization headers

Basically grabbed this from 1.0, thank you Rand for all the help

src/Discord.Net.Net45/Discord.Net.csproj

@@ -611,6 +611,7 @@
       <Link>TaskManager.cs</Link>
     </Compile>
     <Compile Include="Enums\GameType.cs" />
+    <Compile Include="Enums\TokenType.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
   <ItemGroup>

src/Discord.Net.Net45/Enums/TokenType.cs

@@ -0,0 +1,11 @@
+using System;
+
+namespace Discord
+{
+    public enum TokenType
+    {
+        User,
+        Bearer,
+        Bot,
+    }
+}

src/Discord.Net/DiscordClient.cs

@@ -169,14 +169,14 @@ namespace Discord
             return ClientAPI.Token;
         }
         /// <summary> Connects to the Discord server with the provided token. </summary>
-        public async Task Connect(string token)
+        public async Task Connect(string token, TokenType tokenType)
         {
             if (token == null) throw new ArgumentNullException(token);
 
-            await BeginConnect(null, null, token).ConfigureAwait(false);
+            await BeginConnect(null, null, token, tokenType).ConfigureAwait(false);
         }
 
-        private async Task BeginConnect(string email, string password, string token = null)
+        private async Task BeginConnect(string email, string password, string token = null, TokenType tokenType = TokenType.User)
         {
             try
             {
@@ -199,6 +199,20 @@ namespace Discord
                     ClientAPI.CancelToken = CancelToken;
                     StatusAPI.CancelToken = CancelToken;
 
+                    switch (tokenType)
+                    {
+                        case TokenType.Bot:
+                            token = $"Bot {token}";
+                            break;
+                        case TokenType.Bearer:
+                            token = $"Bearer {token}";
+                            break;
+                        case TokenType.User:
+                            break;
+                        default:
+                            throw new ArgumentException("Unknown oauth token type", nameof(tokenType));
+                    }
+
                     await Login(email, password, token).ConfigureAwait(false);
                     await GatewaySocket.Connect(ClientAPI, CancelToken).ConfigureAwait(false);