Add basic location handling

- Retrieve player location from the server
- Send back player location from the server
- Requires that a specific setting is enabled
- Should allow items to be picked up by the player
- May also trigger some anti chead plugins

MinecraftClient/MinecraftClient.csproj

@@ -152,6 +152,7 @@
     <Compile Include="Proxy\Handlers\Utils.cs" />
     <Compile Include="Settings.cs" />
     <Compile Include="Commands\List.cs" />
+    <Compile Include="Mapping\Location.cs" />
   </ItemGroup>
   <ItemGroup>
     <BootstrapperPackage Include=".NETFramework,Version=v4.0,Profile=Client">