* [Code Cleanup] Zone data loading refactor
* Update client_packet.cpp
* strcpy adjustments
* Ensure safe points get reloaded properly
* Simplify GetPEQZone and getZoneShutDownDelay
* Bring in zone_store where needed
* Update client.cpp
* Signature
* Signature
* Convert helpers to using pointers
* PR comment
* Update worlddb.cpp
* Fix loading for instances
* Fix zoning with fallback as well
* Another place for instance fallback
This allows shared tasks to create dz instances automatically through
the `dz_template_id` field instead of using quest scripts. Quest apis
were also added to create expeditions from template ids.