Filter events where energy correction is not possible?

Hi there,

there are some events arribing at Beersheba that have all Ec values as NaN. This is a bit troublesome for beersheba as it applies deconvolution properly (just uses Q values) but ends up assigning energy as 0 when using the Ec values. Thing is, what do we do with these events. I guess they are not useful anyway (as they escape the correction map validity region) but I'm unsure how to proceed:

1. Should we just flag them at the end of esmeralda with some table or label that indicates this or just leave the user to be smart enough to disregard them?
2. Add a filter in beersheba before deconvolution runs so those events are not considered?

I'm guessing two should be added, anyway, as a sanity check but the implementation shall change depending on whether we want to do option 1 or not.

Start by tracing how Beersheba handles events whose Ec values are NaN and how Esmeralda currently exposes their results. Resolve whether these events should be filtered before deconvolution, flagged for users, or both; done means the chosen behavior is specified and the affected event path has a sanity check.