normalize winlogbeats with fluent bit winlog/winevtlog

[mmguero]

@mmguero cloned issue idaholab/Malcolm#604 on 2024-10-29:

The documentation describes setting up Beats to forward to Malcolm.

We need to do the following:

• verify the documentation that it's (still?) correct and accurate

• For winlogbeat specifically, we should look into normalizing its output so that the windows even logs from fluent bit's winlog and winevtlog, the EVTX files uploaded and parsed and what winlogbeats puts out so it's all apples and apples as much as possible (and the dashboards work pretty much the same for all three).