Added string

Author: dbrattli

src/Fable.Python.fsproj

@@ -10,13 +10,14 @@
   </PropertyGroup>
   <ItemGroup>
     <Compile Include="stdlib/Ast.fs" />
+    <Compile Include="stdlib/Base64.fs" />
     <Compile Include="stdlib/Builtins.fs" />
     <Compile Include="stdlib/Json.fs" />
     <Compile Include="stdlib/Html.fs" />
-    <Compile Include="stdlib/Base64.fs" />
     <Compile Include="stdlib/Math.fs" />
     <Compile Include="stdlib/Os.fs" />
     <Compile Include="stdlib/Queue.fs" />
+    <Compile Include="stdlib/String.fs" />
     <Compile Include="stdlib/Sys.fs" />
     <Compile Include="stdlib/Time.fs" />
     <Compile Include="stdlib/TkInter.fs" />