[test] Check loaded formats against module dump

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
[test] Move format samples to subdirectory m

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>
[test] Add test for IT old instrument loader

Signed-off-by: Claudio Matsuoka <cmatsuoka@gmail.com>