Deniz Bahadir authored Mar 28, 2024 and Brad King committed Mar 29, 2024

This was originally attempted by policy CMP0118, but its
implementation did not cover all intended use cases.  We fixed its
documentation in commit 1dabbbb5 (CMP0118: Revise documentation to
describe actual behavior, 2024-03-20).

Add new policy CMP0163 to cover the remaining use cases.  In particular,
make the `GENERATED` property visible to `get_property` calls in other
directories.  In order to capture the original intention of CMP0118,
define CMP0163's NEW behavior to also imply CMP0118's NEW behavior.

Fixes: #25437
Fixes: #25058