The KDE Plasma5 for openSUSE packages were updated.

- Activate contrast effect for the plasma theme
- Don't hardcode colorscheme within kdeglobals, this is redundant
with Plasma5 mechanism, and also has bad side-effect where users
can't change the scheme
- Forward-port plasma-change-defaults.diff from kdebase4-openSUSE;
in adition to adjusting the patch for Plasma5, also change the
default launcher to Application Menu aka Kicker

- Make sure that applications are shown as top results in krunner

- Move default layouts for desktop and panel to upstream branding
subpackage, as we'll provide the equivalents in openSUSE branding
- Make sure that upstream branding requires plasma5-workspace
upstream branding