partcl shootout

[Will Coleda]

It would be nice if someone could set something up to run the tcl  
shootout benchmarks against partcl. (I'm not sure of the licensing on  
the test code: can we just add it to parrot?)

Having tested a few by hand, I'm not sure any of them would actually  
*work*, let alone be fast at the moment, but it would be helpful as a  
way to target missing features.

Not to mention see how slow we are compared to the reference tcl  
implementation at the moment.