(modify-face): Don't call make-face-unbold

(modify-face): Don't call make-face-unbold
if face has no font; likewise for make-face-unitalic.
(x-create-frame-with-faces): Use nil for SET-ANYWAY
when calling make-face-x-resource-internal.
(face-initialize): Don't initialize any face attributes here.
(face-fill-in): Don't call set-face-underline-p if underlining off.

(face-inverse-video-p): New function.
(set-face-inverse-video-p): New function.
(internal-set-face-1): Handle the inverse-video attribute.
(face-spec-set): Handle :inverse-video.
(make-face, x-create-frame-with-faces): Make vectors length 9.
(internal-facep): Expect length 9.
(face-try-color-list): Use set-face-inverse-video-p.