Unit test maintenance

[bmarchant]

Below is a list of the top running unit tests in the AWS continuous-integration/jenkins job:

Test Name	Runtime
./home/vagrant/hoot/test-files/cmd/glacial/RelationMergeTest.sh	379.231
./home/vagrant/hoot/test-files/cmd/glacial/RiverMaxSublineRecursionTest.sh	345.672
.N4hoot43IntersectionSplitterRelationMemberOrderTestE::runRelationMemberOrder2Test	300.989
./home/vagrant/hoot/test-files/cmd/glacial/DiffConflatePartialLinearMatchTest.sh	287.599
./home/vagrant/hoot/test-files/cmd/glacial/DiffConflateCmdTest.sh	129.345
./home/vagrant/hoot/test-files/cmd/glacial/serial/ServiceDiffConflateBounds1Test.sh	121.19
./home/vagrant/hoot/test-files/cmd/glacial/ConflateAverageRoadTest.sh	116.712
./home/vagrant/hoot/test-files/cmd/glacial/serial/ServiceDiffDroppedRefRoadSnap4977Test.sh	116.308
./home/vagrant/hoot/test-files/cmd/glacial/CompareCmdTest.sh	109.682
./home/vagrant/hoot/test-files/cmd/glacial/ScoreMatchesCmdTest.sh	102.684
./home/vagrant/hoot/test-files/cmd/glacial/NetworkConflateCmdTest.sh	101.297

Try to split these test up if possible or shrink the input datasets so that they still test the same code paths and data types but with less overall data.