Consider ways to flag events generated via variables window

[cstawarz]

To distinguish them from events originating within MWServer, when analyzing the event file.

[cstawarz]

This issue has been mentioned on MWorks Support. There might be relevant details there:

https://mworks.discourse.group/t/variable-reset-time/1035/8

[cstawarz]

This issue has been mentioned on MWorks Support. There might be relevant details there:

https://mworks.discourse.group/t/flagging-events-generated-by-variable-window/1050/1