Support Cron Trait

[wonderflow]

We used to discuss it in Rudr https://github.com/oam-dev/rudr/issues/40 I think this is really a common trait which can be core trait candidate

[allenhaozi]

Cron Trait is a very general requirement we tried to develop a cron trait internally If it works and appropriate, we can contribute it

[wonderflow]

Really cool, willing to assign this issue to you.

[hasheddan]

@wonderflow @allenhaozi I think this will likely go in https://github.com/crossplane/crossplane

[resouer]

Yes, let's move the discussion to Crossplane core repo, it's important application layer feature. /cc @wonderflow

Though I'm not sure it's general enough as a core trait, standard trait feels more accurate.

[wonderflow]

yeah, let me create an issue in crossplane core repo.