shared.deps: add eject tool for windows

Add eject.exe tool to support eject/lock/unlock/close cdrom in windows
guest, it should be include winutils.iso;
You can download Source code from git://git@github.com:xutian/C_Study.git;
Build it with "dev c++" tool;

Signed-off-by: Xu Tian <xutian@redhat.com>
shared.deps: add support for reading cdrom tray status  in windows guest

Signed-off-by: Xu Tian <xutian@redhat.com>
virttest: add interface to vm for cdrom eject/change media test

Signed-off-by: Xu Tian <xutian@redhat.com>
qemu.tests: add windows guest support

Signed-off-by: Xu Tian <xutian@redhat.com>
update cdrom_test cfg to support windows guest

Signed-off-by: Xu Tian <xutian@redhat.com>
Merge pull request #1288 from xutian/cdrom_windows_support

Add cdrom test support for windows guest