testing/ccl: new aport
Clozure Common Lisp (CCL) is a free implementation of ANSI Common Lisp. It has a long history, tracing its lineage from Coral Common Lisp and Macintosh Allegro Common Lisp to Macintosh Common Lisp and OpenMCL.
Some distinguishing features of CCL include fast compilation speed, native threads, a precise, generational, compacting garbage collector, and a convenient foreign-function interface.