Added dxerr8 and dxerr9 libraries.

diff --git a/dlls/dxerr8/make_errors b/dlls/dxerr8/make_errors
new file mode 100755
index 0000000..75e4b6b
--- /dev/null
+++ b/dlls/dxerr8/make_errors
@@ -0,0 +1,2 @@
+#!/bin/sh
+exec awk -f errors.awk < errors.dat > errors.h