adding a stop_epoch_interval

[cleverca22]

[chain]
stop_epoch = XX

instead of specifying an epoch to stop on, which then requires constantly updating the config file
can we have a stop_epoch_interval = 5? so it will just stop when epoch % 5 == 0 ?

if you want to stop on every epoch, simply set stop_epoch_interval = 1

[gonzalezzfelipe]

What is your use case for this feature? Sounds like something that could be externally automatized to avoid adding that complexity inside the code. You should be able to set this config through env using DOLOS_CHAIN_STOP_EPOCH and putting it inside a shell script