New Issue: Add support for free-standing fillRandom() with bounds

19790, "bradcray", "Add support for free-standing fillRandom() with bounds", "2022-05-10T22:28:08Z"

PR #19540 added support for fillRandom() that takes bounds, but only as
a method on a random stream, not as a standalone routine. For consistency
with other random routines, it seems as though we ought to support a
standalone version as well.