Recent work on ESS Estia (which uses a number of Monitor_nD's with high binning) have shown that the memory footprint (for NeXus/BINS) may easily explode, leading to simulation crash.

I propose to:

1. Add an input par / options handle to select / deselect the addition of BINS
2. Let (non-event) monitors default to NOT create BINS
3. Let event monitor default to create BINS

(Secondarily we may even decide abort creation of such a BINS array on memory allocation error - and raise a warning / not create the said BINS array, but let the simulation continue.)

Ping @mads-bertelsen