Fix System.IO.Compression assembly reference for net472

Author: Jordan Pierce

OffensiveVS360/OffensiveVS360.csproj

@@ -26,6 +26,13 @@
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
   </ItemGroup>
 
+  <ItemGroup>
+    <!-- .NET 4.7.2 framework assemblies needed for compression and HTTP -->
+    <Reference Include="System.IO.Compression" />
+    <Reference Include="System.IO.Compression.FileSystem" />
+    <Reference Include="System.Net.Http" />
+  </ItemGroup>
+
   <ItemGroup>
     <None Include="source.extension.vsixmanifest">
       <SubType>Designer</SubType>