Introduces the action `wp_after_insert_post` inside a wrapper function of the same name. This hook allows plugin developers to access a posts full data (including its terms and meta data) regardless of the workflow used to save it.
A new parameter is introduced to `wp_insert_post()` to indicate whether the hook should be fired within the function call or will be fired afterward.
Props aristath, Collizo4sky, danielbachhuber, joyously, kadamwhite, kraftbj, markparnell, mikeschroder, noisysocks, peterwilsoncc, SergeyBiryukov, talldanwp, thewebprincess, TimothyBlynJacobs.
Fixes#45114.
git-svn-id: https://develop.svn.wordpress.org/trunk@49172 602fd350-edb4-49c9-b593-d223f7449a82