Add common bits for OverlappingCoupling testing
Add common bits for OverlappingCoupling testing

This includes things like building up the simple mesh
for testing and initialing the test system. Subclasses
that actually do the testing will leverage all this.

fixup common infrastructure/build mesh

libMesh/libmesh,jwpeterson/libmesh,capitalaslash/libmesh,hrittich/libmesh,capitalaslash/libmesh,capitalaslash/libmesh,BalticPinguin/libmesh,BalticPinguin/libmesh,pbauman/libmesh,hrittich/libmesh,roystgnr/libmesh,90jrong/libmesh,libMesh/libmesh,pbauman/libmesh,libMesh/libmesh,pbauman/libmesh,dschwen/libmesh,90jrong/libmesh,jwpeterson/libmesh,90jrong/libmesh,BalticPinguin/libmesh,90jrong/libmesh,roystgnr/libmesh,capitalaslash/libmesh,jwpeterson/libmesh,dschwen/libmesh,roystgnr/libmesh,BalticPinguin/libmesh,BalticPinguin/libmesh,libMesh/libmesh,libMesh/libmesh,hrittich/libmesh,roystgnr/libmesh,pbauman/libmesh,hrittich/libmesh,roystgnr/libmesh,hrittich/libmesh,jwpeterson/libmesh,90jrong/libmesh,capitalaslash/libmesh,BalticPinguin/libmesh,90jrong/libmesh,libMesh/libmesh,pbauman/libmesh,dschwen/libmesh,hrittich/libmesh,90jrong/libmesh,jwpeterson/libmesh,dschwen/libmesh,90jrong/libmesh,BalticPinguin/libmesh,roystgnr/libmesh,capitalaslash/libmesh,BalticPinguin/libmesh,hrittich/libmesh,capitalaslash/libmesh,capitalaslash/libmesh,dschwen/libmesh,libMesh/libmesh,pbauman/libmesh,dschwen/libmesh,pbauman/libmesh,dschwen/libmesh,roystgnr/libmesh,dschwen/libmesh,hrittich/libmesh,jwpeterson/libmesh,roystgnr/libmesh,libMesh/libmesh,pbauman/libmesh,pbauman/libmesh,90jrong/libmesh,hrittich/libmesh,jwpeterson/libmesh,jwpeterson/libmesh