* Implements Map Zones which allows easier configuration of map settings.
* The restricted mapflag has been removed as they will no longer be needed.
* General cleanups and optimizations.

* Convert a few more PK damage checks that got missed from a merge conflict.

Thanks to @SapitoSucio!

* Deprecate the bg_flee_penalty and gvg_flee_penalty battle configs.
* Removes hardcoded restrictions limiting to only BG and GvG maps.

* Adjust checks for faster lookup.

* Re-implement battle_calc_pk_damage to help determine when to adjust damage when PK mode is enabled.
* Implement INF2_IGNOREPKREDUCTION skill flag to make skills bypass the damage adjustments.

* Remove a possible timer even if passing an invalid time value.

* Check by object type rather than passing arbitrary integers to compare against.

* Added the Clear label to allow mapflags to be removed for importing use.
* Converts mapflag storage into multimap.

* Adds back an accidental removal for mapflag name lookup.

* Display a notice when a map doesn't have a zone with a suggestion to assign one.
* Avoiding a default zone as many maps are added from updates and may not get their proper zones until the requisite data is found.

Thanks to @Pokye!

* Fixes atcommands pvpon, pvpoff, gvgon, and gvgoff to properly toggle the current map with the appropriate zone.
* Atcommand pvpon will assign the MAPTYPE_NOPENALTY_FREEPKZONE zone.
* Atcommand gvgon will assign the MAPTYPE_EVENT_GUILDWAR zone.
* Adds getMapZone() to return a map's zone.
* Adds setZone() to set a map's zone.
Thanks to @Atemo!

* Revert atcommand pvpon/pvpoff.
* Revert atcommand gvgon/gvgoff.

* Adjust to class to avoid duplication of definitions.
* Rename prefix to match "class".

Thanks to @Lemongrass3110!

# Conflicts:
#	conf/msg_conf/map_msg.conf

* Change the lookup method for getMapZone to utilize the value stored in the map_data rather than looking through map_zone memory bringing faster results.

Thanks to @Daegaladh!

Thanks to @Daegaladh!

Removed renewal maps from pre-re
Improved map descriptions
Fixed pre-re bossnia maptype (It's actually 24)

* Resolves an issue where the invincible time as not getting applied to maps without the MF_INVINCIBLE_TIME flag.
* Move the logic checks for MF_INVINCIBLE_TIME, MF_FLEE_PENALTY, MF_WEAPON_DAMAGE_RATE, MF_MAGIC_DAMAGE_RATE, MF_MISC_DAMAGE_RATE, MF_LONG_DAMAGE_RATE, and MF_SHORT_DAMAGE_RATE to map_setmapflag_sub() from npc_parse_mapflag().
* Update the mapflag documentation.

* Resolves a few cases of where a map may be defined in the index/cache but not enabled from the config.
* Comment out a few pre-renewal maps that are not enabled.