Add class for bitmap extension and dump its fields. Further work is to
dump bitmap directory.
Test new functionality inside 291 iotest.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
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tests/qemu-iotests/291 | 4 +++
tests/qemu-iotests/291.out | 33 +++++++++++++++++++++++
tests/qemu-iotests/qcow2_format.py | 42 +++++++++++++++++++++++-------
3 files changed, 70 insertions(+), 9 deletions(-)