Luisgen readme

[chrimc62]

Fixes #

Proposed Changes

Restructure to better reflect the source code and build process for Visual Studio and Visual Studio Code.
Improve the readmes.
Added -v and --version to report the version.
Updated to 2.0.1.

[cleemullins]

Is this the right value?

Most people will have installed LuisGen via an NPM package that'll be versioned like "1.2.3". The assembly version is a quad, and will likley have a different number than the NPM package.

Is there a way to get the package from here?

[cleemullins]

The build is failing with a really weird error. Is this something your code touched? It doesn't look like it to me. We should see if @johnataylor or @stevengum can take a look.

lerna notice cli v3.2.1
lerna info versioning independent
lerna ERR! npm run test exited 1 in 'undefined'
lerna ERR! npm run test stdout:
> @ test /home/travis/build/Microsoft/botbuilder-tools/packages/LUISGen
> dotnet test tests/LUISGenTest/LUISGenTest.csproj && cd tests/LUISGenTestJS/ && npm run build && npm run test
lerna ERR! npm run test stderr:
System.ArgumentException: Item has already been added. Key in dictionary: 'SPAWN_WRAP_SHIM_ROOT'  Key being added: 'SPAWN_WRAP_SHIM_ROOT'
   at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add)
   at System.Environment.ToHashtable(IEnumerable`1 pairs)
   at System.Environment.GetEnvironmentVariables()
   at System.Diagnostics.ProcessStartInfo.get_Environment()
   at Microsoft.DotNet.Cli.Utils.ForwardingAppImplementation.GetProcessStartInfo()
   at Microsoft.DotNet.Cli.Utils.MSBuildForwardingAppWithoutLogging.GetProcessStartInfo()
   at Microsoft.DotNet.Tools.MSBuild.MSBuildForwardingApp.GetProcessStartInfo()
   at Microsoft.DotNet.Tools.RestoringCommand.Execute()
   at Microsoft.DotNet.Tools.Test.TestCommand.Run(String[] args)
   at Microsoft.DotNet.Cli.Program.ProcessArgs(String[] args, ITelemetry telemetryClient)
   at Microsoft.DotNet.Cli.Program.Main(String[] args)

[stevengum]

Crosslinking #621