Update AUTHORS.md with all contributors and CLA
Update AUTHORS.md with all contributors and CLA

 Add some CLA info and update CLA assistant record based on old
 `Signed-off-by` lines
 [ci skip]

sourceryinstitute/opencoarrays,sourceryinstitute/opencoarrays,sourceryinstitute/opencoarrays,zbeekman/opencoarrays,zbeekman/opencoarrays,zbeekman/opencoarrays