Create a .Net core tools code generator for Connected Service

[marabooy]

Is your feature request related to a problem? Please describe.

Currently users are unable to use the current code generation features outside visual studio

Describe the solution you'd like

Create a .net core tools project and support the code generation services with the templates which supports a subset of what the current tools can do.

[andreikleban]

@marabooy @habbes check it dotnet-odata4 and Odata.V3.Client.Cli

[marabooy]

@klebanandrey This is impressive would you be interested in bringing these to Connected service? Do let me know if you need any help.