Changed category of 2048-ml to games-puzzle

--HG--
rename : x11-misc/2048-ml/2048-ml-0.1.ebuild => games-puzzle/2048-ml/2048-ml-0.1.ebuild
rename : x11-misc/2048-ml/2048-ml-0.2.ebuild => games-puzzle/2048-ml/2048-ml-0.2.ebuild
rename : x11-misc/2048-ml/2048-ml-0.3.ebuild => games-puzzle/2048-ml/2048-ml-0.3.ebuild
rename : x11-misc/2048-ml/Manifest => games-puzzle/2048-ml/Manifest