Feature requests

If this issue is a feature request:

• Describe the scenario and benefits that the feature supports.

Be able to write a custom managed BA in .NET Core instead of .NET Framework since the future of managed code is in .NET Core.

• Describe how you're accomplishing the feature today (if possible).

Not possible today without privately implementing this feature request.

• Describe what you'd like the new feature to do.

Add built-in BA that loads the .NET Core runtime, much like the current bal:ManagedBootstrapperApplication loads the .NET Framework runtime.