Some scanner related actions are triggered at exit of the whole program, not fitting the Gallia 2.0 Approach of calling sub scanners

[fkglr]

Some scanner related actions are triggered at exit of the whole program, not fitting the Gallia 2.0 Approach of calling sub scanners.
An example would be the closing of log handlers which currently results in having log files with multiple scanner logs if they are called from inside a script.

[rumpelsepp]

This is clearly a bug that needs to be addressed before gallia 2.0. Logging must be scoped to scanner classes somethow. Needs additional design work.