update file

GWSocketClient/GWSocketClient.csproj

     </Compile>
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
+    <Compile Include="property\PropertiesLoader.cs" />
     <Compile Include="util\CheckUtil.cs" />
     <Compile Include="util\HexUtil.cs" />
     <Compile Include="util\Utils.cs" />