[fpc-pascal] Resource compilation

[Marco van de Voort]

In our previous episode, Michael Van Canneyt said:
> > changes/extensions to fcl-res?
> 
> I think a lot. There is a request in the bugtracker for a resource compiler since ages.

It comes up regularly. Many people don't even pursue it further, and just
use resources generator by e.g. an old delphi project if needed.

But longterm, we need this for completeness sake.