tests-3d: add test-clear
libwrap: updates

remove unneeded pmem, add more drm ioctls (just names), and handle
close()..
resync headers w/ mesa/ddx
cffdump: fix dump of indexes

Size field is in bytes, not dwords
tests-2d: add more to test-composite

Add more repeat and op/src/dst/mask variation tests.
zdump: util for parsing 2d cmdstream

Shows register names.. and at some point will add some register bitfield
parsing perhaps.
XXX stash