Add a constructor to AbsoluteDate based on Instant
https://forum.orekit.org/t/new-java-time-api-date-vs-instant/1197/2
As Java deprecated the Date class, maybe the constructor with Date could also be deprecated in Orekit ?
https://forum.orekit.org/t/new-java-time-api-date-vs-instant/1197/2
As Java deprecated the Date class, maybe the constructor with Date could also be deprecated in Orekit ?