Check Action synonyms for same AEE or its SYN; revise SCL consistency validation

[davidzbiral]

Just as we are checking whether Concept synonyms have the same superclass and report if it does not, we need to report if Action synonyms have an inconsistent AEE. (AEE is important for taxonomy in Actions; we will not check for SCL consistency among Actions synonyms at this point, only for AEE consistency.)
Inconsitent means that their AEE is neither the same not the SYN of one another.

When implementing this, also implement this extension to SYN to the existing SCL checking: if the SCLs are SYN of one another, the entity should pass the test without notification.
E.g.:

• "(common) meal" has SYN "eating together"
• "(common) meal" has SCL "meal"
• "eating together" has SCL "eating"
• "eating" has SYN "meal"
  in this case "(common) meal" and "eating together" should both pass the test of SCL consistency. Now they do not, because so far we requested same SCL, but we should have requested: same SCL or one of its synonyms.