rclg-foreigns, clisp/sbcl specialization; rclg-cffi-sysenv and rclg-load,...

rclg-foreigns, clisp/sbcl specialization; rclg-cffi-sysenv and rclg-load, factor out defuns from rclg-load; rclg-load, simplification; rclg-convert, clisp specialization; rclg-init, rclg-load, load libraries only when (rclg-start) is called, not when asdf-installed

git-svn-id: https://middleangle.com/svn/rif/projects/RCLG@139 97840717-62f2-0310-bead-daafb7b60902