add a random sort order for tests, -DtestRandomSort="true|false|randomizeSeed"

when -DtestRandomSort="true" the build will pick and report the randomize seed number used, so the randomized test can then be repeated

so this run could be then be repeated using -DtestRandomSort="5512"

needed to always sort before applying random sort

added support for passing a random seed

however, the sort order still changes each time?

this should be extended to use a fixed seed, so problems can be reproduced