Make S-SPC scroll in the opposite direction to SPC

Make S-SPC scroll in the opposite direction to SPC

* lisp/calc/calc-graph.el (calc-graph-show-dumb):
* lisp/calendar/calendar.el (calendar-mode-map):
* lisp/cus-edit.el (custom-mode-map):
* lisp/ehelp.el (electric-help-map):
* lisp/emulation/vip.el (vip-mode-map):
* lisp/epa.el (epa-key-list-mode-map):
* lisp/info.el (Info-mode-map):
* lisp/mail/rmail.el (rmail-mode-map):
* lisp/mail/rmailsum.el (rmail-summary-mode-map):
* lisp/man.el (Man-mode-map):
* lisp/net/newst-plainview.el (newsticker-mode-map):
* lisp/progmodes/cpp.el (cpp-edit-mode-map):
* lisp/progmodes/grep.el (grep-mode-map):
* lisp/progmodes/idlw-help.el (idlwave-help-mode-map):
* lisp/simple.el (special-mode-map):
* lisp/startup.el (splash-screen-keymap):
* lisp/view.el (view-mode-map):
Make S-SPC scroll in the opposite sense to SPC.

Fixes: debbugs:2145