- adding lua npcs handling

- tree handling talkstates
- a few bugfixes and corrections

- added callbacks to keywords

- adding storagevalue requirements for easy checks with failure respond function

- added documentation and annotations
- split all the functions in different files for better overview and organization

- if you add a callback to a keyword it can return false and also return a string for the failure respond message
- changed order of calling functions in events
1) checks callback
2) checks requirements
3) opens shop
now we are not opening shop even tho requirements or callback was not correct
- added an example usage of callback in handler.lua
- corrections in documentation

- constants.lua
adding more messages to MESSAGE_LIST
- events.lua
fixing a problem where the player could say keywords without greeting the npc first
added requirements
added a `help` default keyword, which will tell the player to which keywords the npc responds
- general better documentation
- added modules.lua
- added requirements.lua
- added a test example npc data/npc/lua/#test.lua

- removed `requireStorage` it's redundant as we have the same in requirements
- renamed
`setGreetRespond` -> `setGreetResponse`
`setFarewellRespnd` -> `setFarewellResponse`
- added
`setGreetKeywords`
`setFarewellKeywords`

- fixed annotations

- moved everything to NpcType
- we don't create a NpcScriptInterface per npc created rather just load it by each NpcType
-

- we are sharing one NpcScriptInterface instead of creating one for each npc

forgot to include

Co-Authored-By: Sarah Wesker <sarahelizabetwesker@gmail.com>

the usual

- `keyword` and `respond` support now multiple inserts via table
- if there is multiple keywords for the same outcome we just point to one metatable instead of creating several (memory efficient)

- made all the get functions of `NpcType` into const
- added `NpcType.onMove`,`NpcType.onPlayerCloseChannel` and `NpcType.onPlayerEndTrade` with their callback functions
- correction for lua npcs at ~NpcEventsHandler() which caused them to have no scripting interface when an npc was removed and respawned

- you can now use item names aswell for shop items

- we are sending errors in console if the item does not exist or if it doesn't have the property to be able to pick it up

- adding `NpcsHandler:farewell()` function to release focus on yourself on certain keywords.
- fixed correct order of trying to get a failureResponse when working with callbacks
- shows an error message if there is no set failureResponse

- changing npcEventHandler shared_ptr to unique_ptr

- we can now add voices that the npc randomly talk or yell certain phrases
- callback now when returning true can also directly return the message the npc shall respond with, if it's left empty or nil it'll fall back to the default respond message
- few spelling fixes removeFocus -> releaseFocus
- added NpcHandler:farewell() & NpcHandler:talk(table) functions

- we are now able to set sub-keywords onto keywords which are triggered by storagevalues, if the player has the required storagevalue it'll move the talkState onto the sub-keyword instead of staying on the normal keyword
- I've also changed the check order, requirements are now first load and then everything else gets executed if the check was good, if not we do an early return

- we check storage/level now with string operators ">=,==,<=,<,>" in requirements
- we can set now custom failureRespond messages for requirements ex: failureRespond(REQUIREMENTS.storage, "I don't talk to normal people") this message would appear now if storage requirements are not met
- added REQUIREMENTS to constants.lua
- added NpcsHandler:setStorageValue(key, value)

We now have to handle greeting with keywords, this decision was made due to npcs giving different respond greetings depending on storage values, that's why I moved the entire logic into keywords now

- removed `__index` from keywords table, as we don't need it for that metatable
- added `NpcsHandler:onCheckStorage` to erase some repetitive code

- onAnswer() can be used to get an answer from a player which doesn't match a keyword (transfer/deposit on a banker npc) it requires always to have a callback or it'll throw a warning message
- added answer functions (add/get/reset)
- fixed a bug when player transfers money to another player and the server would crash it would duplicate the money

We don't reset the talkState if there is an onAnswer on this talkState

getAnswers -> getAllData
getAnswer -> getData
addAnswer -> addData
resetAnswers -> resetData
I've also fixed the travel module and added the greet keywords

- removing npc:spawn() it's redundant
- forgot to change one shared_ptr to unique_ptr

We are now checking if npc is idle before we execute onThink this decreases cpu usage quite a lot, therefore the spectator range has been increased that the npc goes out of idle once a player is in yell range

- added inline constexpr for the Viewport calculation (can be evaluated once at compile time)
- removed the non necessary declarations which thrown compile errors

- now players data gets properly erased once the player leaves the conversation with the npc

- removed info struct and moved everything to public

- delay is now global and was removed out of the voices table, default delay is 30s and the delay can be set at handler:talk(voices, delay)
- we check now if the voice it wants to say is the same as the last voice and then roll again until it finds another one if there are several to choose from

This now saves the player who was sending the money regardless if the receiver is online/offline and does a db query for the receiver to keep the bank balance in sync

renaming folder from evilnpcsystem to revnpcsys

Co-Authored-By: Sarah Wesker <sarahelizabetwesker@gmail.com>

The npc was not correctly focusing players when they talked to him, this bug is now fixed.

Co-Authored-By: Sarah Wesker <sarahelizabetwesker@gmail.com>

now you can check in requirements for certain vocations in order to pass

- added some linter corrections and additions
- changed player:getItemCount(id, subType) -> player:getItemCount(id, subType, ignoreEquipped) that way we can exclude equipped items or not
- added NpcsHandler:addItems(table--[[,container, inbox]])
we can add a table of items with that, if the player doesn't have enough space or capacity then the items will be send to inbox
- added Player.sendInboxItems(self, items, containerId)
- re worked onStorageValue callback
we can now set a "range" with ex:
onStorageValue(1, ">", 10, "<")
- re worked requirements (level & storagevalue) checks, they accept now ranged checks aswell
level(1, ">=", 9, "<=")
storage(10, ">", 50, "<")
- changed NpcsHandler:teleport(pos) -> NpcsHandler:teleport(pos, magicEffectFromPos, magicEffectToPos)
default is CONST_ME_TELEPORT
- added NpcType:health(...) & NpcType:maxHealth(...) functions
-added NpcRequirements:items(table) & NpcRequirements:removeItems(table)
- added some stuff in constants.lua