[Code Cleanup] Zone Data Loading Refactor (#2388)

* [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

common/CMakeLists.txt

@@ -84,6 +84,7 @@ SET(common_sources
     unix.cpp
     platform.cpp
     json/jsoncpp.cpp
+    zone_store.cpp
     net/console_server.cpp
     net/console_server_connection.cpp
     net/crc32.cpp
@@ -597,6 +598,7 @@ SET(common_headers
     useperl.h
     version.h
     zone_numbers.h
+    zone_store.h
     event/event_loop.h
     event/task.h
     event/timer.h