Bibliographical noteFunding Information:
We thank Jack Suess and Damian Doyle (UMBC Division of Information Technology) for their enthusiastic cooperation. Thanks to Richard Baldwin and Travis Scheponik for helpful comments. This project was supported in part by the National Science Foundation under SFS grants 1241576 and 1753681. Sherman was also supported by the National Science Foundation under SFS capacity grant 1819521 and by the U.S. Department of Defense under CAE-R grant H98230-17-1-0349 and CySP grants H98230-17-1-0387 and H98230-18-0321.