gnu: Move KDE games to (gnu packages kde-games).

*  gnu/packages/games.scm:
(ktuberling picmi kolf libkmahjongg kmahjongg kshisen kajongg kbreakout
kmines konquest kbounce kblocks ksudoku klines kgoldrunner kdiamond
kfourinline kblackbox knetwalk bomber granatier ksirk palapeli kiriki
kigo kubrick lskat kapman kspaceduel bovo killbots ksnakeduel kollision
knavalbattle kreversi ksquares kjumpingcube):
Move to gnu/packages/kde-games.scm.
[define-module]: Remove (gnu packages kde), (gnu packages
kde-frameworks).

* gnu/packages/kde-games.scm: New module.
[header]: Copy over any copyrights I could find that affected these games.
* gnu/local.mk (GNU_SYSTEM_MODULES): Register it.

Why? games.scm is very large, and will only get larger, so splitting it
helps. Also, it is convenient for singling out and updating KDE games.

Signed-off-by: Marius Bakke <marius@gnu.org>

gnu/local.mk

@@ -343,6 +343,7 @@ GNU_SYSTEM_MODULES =				\
   %D%/packages/kawa.scm				\
   %D%/packages/kde.scm				\
   %D%/packages/kde-frameworks.scm		\
+  %D%/packages/kde-games.scm			\
   %D%/packages/kde-internet.scm			\
   %D%/packages/kde-multimedia.scm		\
   %D%/packages/kde-pim.scm			\