[Commands] Add additional #peqzone functionality. (#2085)

* [Commands] Add additional #peqzone functionality.
- Add #peqzone flagging capabilities so operators don't have to blanket allow #peqzone access to zones.
- Allows you to set a zone's `peqzone` column to `2` and disallow use of `#peqzone` until they have been given the appropriate flag.
- Add #peqzone_flags command to list your #peqzone flags similar to #flags command.
- Add `character_peqzone_flags` table to database and database_schema.h.
- Required SQL update to add the new table.
- Add client:ClearPEQZoneFlag(zone_id) to Lua.
- Add client:HasPEQZoneFlag(zone_id) to Lua.
- Add client:LoadPEQZoneFlags() to Lua.
- Add client:LoadZoneFlags() to Lua.
- Add client:SendPEQZoneFlagInfo(client) to Lua.
- Add client:SetPEQZoneFlag(zone_id) to Lua.
- Add $client->ClearPEQZoneFlag(zone_id) to Perl.
- Add $client->HasPEQZoneFlag(zone_id) to Perl.
- Add $client->LoadPEQZoneFlags() to Perl.
- Add $client->SendPEQZoneFlagInfo(client) to Perl.
- Add $client->SetPEQZoneFlag(zone_id) to Perl.

* Fixes.

zone/CMakeLists.txt

@@ -287,7 +287,6 @@ SET(zone_headers
     zone_store.h
 )
 
-
 ADD_EXECUTABLE(zone ${zone_sources} ${zone_headers})
 
 INSTALL(TARGETS zone RUNTIME DESTINATION ${CMAKE_INSTALL_PREFIX}/bin)