Add support for java.time.Instant in DateTimeScalar scalar

[steinmaerivoet]

No description provided.

[BlasiusSecundus]

There is actually an open PR with that feature: #26

[wallind]

There is actually an open PR with that feature: #26

seems the development team has closed that PR and made a statement solidifying intent NOT TO INCLUDE Instant support #26 (comment)

Thanks for opening a PR, and sorry it has taken so long to reply.

Similarly to #52, I discussed with the team and we decided to not include Instant, Date and LocalDateTime.

For Instant and LocalDateTime, the challenge is neither has an offset as @andrewsf said. It would be better for the user to choose the offset rather than the library to assume an offset.

For Date, we'd rather not support this outdated Java class.

[dondonz]

Hey everyone, thanks for contributing to this thread. As Instant doesn't include an offset we'd prefer not to include this scalar in the library.