(face-initialize): Specify default characteristics

(face-initialize): Specify default characteristics
for the	standard faces.  Use face-fill-in to set up existing frames.
(face-fill-in, face-try-color-list): New subroutines.
Handle underline, foreground and background in the
frame-independent info of a face.
(x-create-frame-with-faces): Use face-fill-in.
(x-initialize-frame-faces): Function deleted.