stdin\stdout support for recompressing pcf file

[Artofeel]

stdin\stdout for "> pcf" probably not very needed, but for repacking "< pcf" it could be very useful, since after precomp there will be compressor that suport it and stdin\stdout speed up process a lot.

[sarether]

That would be great...

[redthing1]

I was looking into this, unfortunately it looks very difficult to edit the codebase to add this. But I am very interested