This reverts merge request !1034

When `Moore_WITH_Allen` is set to a false-y value,
Moore does not depend on Allen (and some tests are disabled).
The dependency is not kept optional in find_package sense
(i.e. not REQUIRED) because it might be found from an undesired
location (e.g. a release on CVMFS).

This flag is useful for (some) development purposes only.

also update version to 53.0 and constraint on Phys version