Expression evaluator

Element	Missed Instructions	Cov.	Missed Branches	Cov.	Missed	Cxty	Missed	Lines	Missed	Methods	Missed	Classes
Total	474 of 3,334	85%	33 of 381	91%	47	284	126	578	14	84	6	10
org.djutils.eval		85%		91%	47	284	126	578	14	84	6	10