dbdump: ignore with regexp
- Introduces support for regular expressions when specifying which tables to ignore from a given dump. (closes #579)
- Additionally, always attaches back slave.
Signed-off-by: Samuele Kaplun <samuele.kaplun@cern.ch>
Co-authored-by: Raquel Jimenez Encinar <raquel.jimenez.encinar@cern.ch>