Adding a Scala example

[amirhakim]

Would be really useful to add a working Scala example

[jeffpeiyt]

Hi @amirhakim thanks for your kind suggestion and interests in Parallec!

Do you mind adding one. Parallec.io is designed as a java library and I am not sure if this is available in scala. However, I believe it is quite straightford to rewrite it in scala because we use Akka as the core for message passing and concurrency control.