ExternalizedSingletonInverseVariableSupply + StatefulVariableListener
(cherry picked from commit 25422b2748aa3e1ed20be6bc99a6b2aa4b609b50)
Activate Supply and Demand system + remove TrailingMapSupport (performance gain on VRP)
(cherry picked from commit e6f8f591f4b119bbcf7ef987e2ca03eff17242b0)