Create a visual studio experience to install Steeltoe projects

[hananiel]

Visual studio extension to create project from templates.
Currently there is no support from dotnet core templates for vs wizard for new projects.
However yeoman for net has a way to do this . we can imitate this by running dotnet cli behind the scenes.

[hananiel]

Basic workflow:

1. File->Steeltoe-> newSteeltoeProject
   
2. Change ProjectName, select dependencies and create project:
   
3. VS opens generated project
   

[bart-vmware]

Closing this in favor of SteeltoeOSS/NetCoreToolTemplates#98, which tweaks the template configuration to look good in Visual Studio. Also supports VS Code and Rider.