kernel32/tests: initial tests for cdrom.c

[Joerg-Cyril.Hoehle at t-systems.com]

Francois Gouget asked:

>Are there tests that are impossible if there is a CD in the drive?

Some tests combinations.  I believe Dan's tests want a DVD, whereas
mcicda expects audio CD-ROMs.  Either you play disk jockey while
running the tests, or some tests will be skipped.

Note that mcicda will skip some tests unless you use a mixed audio+data
CD-ROM. Few people have those. An audio only CD-ROM will not run all tests.

The mcicda testsuite is known to skip correctly when no disk or a DVD is
inserted.  Anything else is a regression.

Regards,
	Jörg Höhle