Automatically stop Simulate() if update time becomes too long

[heplesser]

Is your feature request related to a problem? Please describe.

NEST simulations can slow down significantly if network activity becomes high, even more so if neuron models use adaptive-stepsize solvers. Currently, there is no way to interrupt this simulation except killing the entire NEST process.

Describe the solution you'd like

The user sets an upper limit for the duration of a single update time slice (length: minimum delay), e.g.,

nest.SetKernelStatus({'max_update_duration': 1.0})

to set a limit of 1 second wall-clock time for a single min-delay-length update step. If a step takes longer, simulation terminates.

Additional context
See also this mailing list discussion: https://www.nest-simulator.org/mailinglist/hyperkitty/list/users@nest-simulator.org/thread/FQ6VDQ7EDSSKRIHMMRETIAIXK43A5GCZ/