[Contributors] Add contributors with >25 PRs
Addresses
MODIFY
CONTRIBUTORS.md
CONTRIBUTORS.md
* Darrel Miller [@darrelmiller](https://github.com/darrelmiller)
* Jason Harmon [@jharmn](https://github.com/jharmn)
* Jeremy Whitlock [@whitlockjc](https://github.com/whitlockjc)
+* Kris Hahn [@KrisHahn](https://github.com/krishahn)
* Marsh Gardiner [@earth2marsh](https://github.com/earth2marsh)
+* Mike Ralphson [@MikeRalphson](https://github.com/mikeralphson)
* Rob Dolin [@RobDolinMS](https://github.com/robdolinms)
* Ron Ratovsky [@webron](https://github.com/webron)
* Tony Tam [@fehguy](https://github.com/fehguy)

[Contributors] Add contributors with >25 PRs

Addresses #1156