Merge/Dependencies.hs: added 'QtCore' pkg-config libs

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Merge/Dependencies.hs: added extralibs for: 'QtCore', 'QtGui', 'QtOpenGL'

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>