initial import of libXfixes-6.0.1

merge libX11 1.7.2, and libXfixes 6.0.0.

initial import of libXfixes-6.0.0

initial import of libXfixes-5.0.3

initial import of libXfixes-5.0.1

initial import of libXfixes-5.0. important changes include:
pointer barriers

merge libXfixes 4.0.5.

initial import of libXfixes-4.0.5

initial import of libXfixes-4.0.4

initial import of libXfixes-4.0.3