Support VSHPROPID_SupportedMyApplicationTypes instead of VSHPROPID_SupportedOutputTypes for VB

[davidwengier]

Part of #4249

For VB projects the MyApplication model means that we need to return a value for VSHPROPID_SupportedMyApplicationTypes, and we need to not return VSHPROPID_SupportedOutputTypes to override them. Alternatively we could take a different approach here, like perhaps using capabilities to enable specific MyApplicationTypes, and allowing them to override OutputTypes.

This will unblock more work to ensure these new application types are correctly supported, and we only show the right options.

[davidwengier]

This is done, but blocked on being enabled on .NET Core support for the underlying types. Once those are in, it still needs to be tested too :)

This is the changes required:
master...davidwengier:SupportMyApplicationTypes