This add-on is an adaption of my v3o exporter for blender 3.0.
My v3o exporter was based on the offical obj exporter for blender by Campbell Barton
and Bastien Montagne and the v3o Import/Export Script for blender 2.7 by MedicalByte, published
on the emergency-planet forum.
This add-on allows exporting lights into an e4p.xml format, which can be parsed into an emergency readable e4p file.
The information about the construction of the e4p file has thankfully been provided by noBlubb and Eagle's Eye.
A suitable input field for creating lights is included in the object properties.