Should we release one package per UI framework?

[matheo]

@ngx-formly releases one package per UI theme, like @ngx-formly/bootstrap and @ngx-formly/material.

Perhaps, if we release them all as subpackages, like @myndpm/dyn-forms/ng-zorro
if the subpackage is not used then it will be tree-shaked right?

IMO it would be fine, the folders will be a little bloated inside libs/forms but that's all.
Opinions?

[matheo]

Using a ui prefix like ui-material seems enough to organize the subpackages
I will release a refactor in the next few hours.