Create Dotnet Template Pack for Feersum

[iwillspeak]

A template pack with the following:

• prject template for console application (type Exe)
• Project template for a library

• Item template for a scheme library definition (.sld, define-library form)

  https://docs.microsoft.com/en-us/dotnet/core/tutorials/cli-templates-create-item-template https://docs.microsoft.com/en-us/dotnet/core/tutorials/cli-templates-create-project-template https://docs.microsoft.com/en-us/dotnet/core/tutorials/cli-templates-create-template-pack