koops: add flag names to taint flag table

The table of kernel taint flags has been extended to include the flag
name, and it has been exposed in the koops header so other compilation
units can use it.

Signed-off-by: Martin Milata <mmilata@redhat.com>
Signed-off-by: Richard Marko <rmarko@redhat.com>
python: expose koops taint flags as a dict

Closes #85.

Signed-off-by: Martin Milata <mmilata@redhat.com>
Signed-off-by: Richard Marko <rmarko@redhat.com>