DJUTILS serialization of data structures

Element	Missed Instructions	Cov.	Missed Branches	Cov.	Missed	Cxty	Missed	Lines	Missed	Methods	Missed	Classes
Total	601 of 13,913	95%	89 of 544	83%	81	578	124	2,036	18	303	1	66
org.djutils.serialization		95%		83%	81	578	124	2,036	18	303	1	66