FFI package for Moren environment

For details, see the comments in the files: ffi.lisp, number.lisp

Compilation

(setq bin (make-array 0 :fillpointer 0)) 
(load "package.lisp" :hook bin)
(load "ffi.lisp" :hook bin)
(load "number.lisp" :hook bin :output "./ffi.js")
;; => will be bundle js-code (file1, file2, file3) from bin to "lib.js"