Refactoring AutoDataTheoryCommand

This commit in-lined the CustomizeFixtureAndSetParameterValues method
and introduced the PrepareToExecute method.
Code cleanup by R#
Using Install.ps1 instead of app.config.transform

The install.ps1 script will run in a project when a package is installed
. The Add-BindingRedirect can resolve assembly redirect issues, which is
included in the script.
Uninstalling  NuGet.CommandLine
Using Build as the Targets attribute

Using the Build value is appropriate for the Target attribute instead of
the Rebuild value.
Reformatting the XML document
Fixing the Nuget(.exe) path
Adding the title tag to the nuspec file
The csproj file modified by Visual Studio
Chaining the version of the packages

The version of the packages for AutoFixture is appropriate to be matched
with the version used in source code.
Incrementing patch version

This patch version changed the version of the packages for AutoFixture
to the version(v3.2.1) used in source code.