Enhance testing logic in abm

[xsaschako]

Motivation / Current Behaviour

In the paper several things showed what needed revision in the testing logic. We should decouple testing strategies from actually being able to enter a location.

Enhancement description

The folowing things got enhanced:

• remove add and remove_age_group & remove_infection_state as well as for testing schemes were deleted because the workflow is better if you setup a new testing strategy for that time period. This prohibits to fiddle with it all the time. Also this led to a few hard to debug bugs in the development. (more options != better)

• completely change how testing schemes are updated because runtime was HEAVILY affected

• The follwing got deleted: Bug heavy and also leads to no testing at home. They go home either way the nex timestep because quarantine.

if (location.get_type() == mio::abm::LocationType::Home) {
        return true;
    }

Additional context

No response

Checklist

• [x] Attached labels, especially loc:: or model:: labels.
• [x] Linked to project