#1425: unwrap the PMP levels in bylaws, so anger, love and paranoia from Fbe.pmp are accepted

[jack5505]

Fbe.pmp returns an int property wrapped in a SimpleDelegator, while Fbe.bylaws checked anger, love and paranoia with is_a?(Integer), which a delegator doesn't pass. So Fbe.bylaws(anger: pmp.hr.anger, ...) failed with The 'anger' must be an Integer: 2, although the value is an Integer inside.

Fbe.bylaws now unwraps a Delegator before the checks, so the levels from the PMP are accepted as they come. Anything else that is not an Integer, like '2' or nil, is still refused.

Added a test that reads non-default levels from PMP facts and passes them to Fbe.bylaws directly; it fails with the error above without the fix.

Closes #1425