[sol refactor] table zones functions

[wrenffxi]

I affirm:

• [x] that I agree to Topaz Next's Limited Contributor License Agreement, as written on this date
• [x] that I have read the Contributing Guide and the Code of Conduct
• [x] that I've tested my code since the last commit in the PR, and will test after any later commits

Temporary:

• [x] that I understand there are large refactoring efforts going on right now, that these efforts touch every single Lua script and binding, and that my pull request might get put on hold to ensure there are not any conflicts with the refactoring work

• Add zone_object table to each zone and return it

• Move global zones functions onto this table

• In Quicksand Caves, make getWeight a local function

Here are the functions that got moved onto zone_object, and the number of times each was moved.

    [onInitialize] : 290
    [onZoneIn] : 283
    [onRegionEnter] : 273
    [onEventUpdate] : 290
    [onEventFinish] : 290
    [afterZoneIn] : 19
    [onRegionLeave] : 43
    [onTransportEvent] : 23
    [onConquestUpdate] : 160
    [onInstanceZoneIn] : 7
    [onInstanceLoadFailed] : 7
    [onGameHour] : 18
    [onGameDay] : 7
    [onChocoboDig] : 26
    [onZoneWeatherChange] : 12
    [onTOTDChange] : 1