[fpc-pascal] COM interfaces support in FPC 2.2.2 Win64

[Marco van de Voort]

In our previous episode, Bart said:
> Not sure if this is related, but 2.2.2 has a bug in setting properties via COM.
> 
> It should be resolved in 2.2.4

As far as I know the winunits-base package had more than an handful other
fixes also.