MacOS tests (#3887)

* Adds k8s dockerfile & updates Jenkinsfile

* Updates Make config for Mac 10.15

* added mac 15 config

* custom workspace

* lower macx

* removed custom workspace

* uuuuugh

* envs

* sdafl;kajsdf

* added retry on checkout

* changed grep line

* upped the retrys

* changed grep

* changed grep

* simplified tests for exception checking

* SpiceRotation os truth

* Jenkinsfile ISIS3 env -> ISIS env

* revert conda env name

* Jenkinsfile env update

Co-authored-by: Evin Dunn <evindunn14@gmail.com>
Co-authored-by: isis3mgr <isis3mgr@igswzawgas-bmac.wr.usgs.gov>