gnu: lisp: Add most missing source package for Common Lisp libraries.

gnu: lisp: Add most missing source package for Common Lisp libraries.

* gnu/packages/lisp.scm (cl-parse-js, cl-parse-number, cl-iterate, cl-uglify,
  cl-cffi, cl-sqlite, cl-cffi-gtk, cl-webkit, cl-iolib, cl-ieee-floats,
  cl-xml, cl-reexport, cl-dexador, cl-cookie, cl-lisp-namespace,
  cl-trivial-cltl2, cl-introspect-environment, cl-type-i, cl-optima,
  cl-fare-quasiquote, cl-trivia, cl-mk-string-metrics, cl-str, cl-xmlspam):
  New variables.