Move some definitions from ps-def.el to ps-print.el

Move some definitions from ps-def.el to ps-print.el

* lisp/ps-def.el (ps-face-bold-p, ps-face-italic-p)
(ps-face-strikeout-p, ps-face-overline-p, ps-face-box-p)
(ps-color-format, ps-float-format)
(ps-generate-postscript-with-faces1): Move from here...
* lisp/ps-print.el (ps-face-bold-p, ps-face-italic-p)
(ps-face-strikeout-p, ps-face-overline-p, ps-face-box-p)
(ps-color-format, ps-float-format)
(ps-generate-postscript-with-faces1): ...to here.