System.Net.Http removed as package reference for .NET Standard 2

Author: hitchhiker

src/IpfsApi.csproj

@@ -30,7 +30,8 @@
   <ItemGroup>
     <PackageReference Include="Ipfs.Core" Version="0.8.3" />
     <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
-    <PackageReference Include="System.Net.Http" Version="4.3.3" />
+	<PackageReference Include="System.Net.Http" Version="4.3.3" Condition="'$(TargetFramework)' == 'netstandard14'" />
+    <PackageReference Include="System.Net.Http" Version="4.3.3" Condition="'$(TargetFramework)' == 'net45'" />
   </ItemGroup>