Revert "Delete AssemblyInfo.cs"

This reverts commit 7846f6623ed4baa2fada98c29cd8342f04c04444.
Revert "Delete App.config"

This reverts commit 640caa7b00c892d155d390e303d37d4fecfb1c90.
Revert "Delete SDT.csproj"

This reverts commit 5780bce3c37a455b5f270f91a0744b6edc0e1ac5.