Including fix _SCallback for 3 params, triggred mode correct call for .cast back and .cast target.
Remove outdated code for support old 19421 (and ranks) implementation in client data.
* Rename 2 creature_template fields to more clean names and related code update also.
* Use enum values instead raw values for type_flags, use halper functions instead code repeating.
* Move tamed pet creating code to new function.