Including taskfiles: don't namespace and optional including

[back-2-95]

Currently including a taskfile will result namespacing for commands in that file. Example:

includes:
  foobar: ./tools/task/Taskfile.yml

Will have commands liketask foobar:something.

Is it be possible to include taskfile and declare tasks to be without namespace?

Other thing:

Can including be optional? E.g. if VARIABLE=1 then include some taskfile.

[ghostsquad]

includes does support an optional flag. There's another discussion about this here: #273

I just weighed in on it. I think flattening, or removing the "namespace" prefix hurts readability.