feat(es_extended/imports): add require

[Kenshiin13]

Description

This PR introduces a new module loading system for the ESX framework. The require function is now available for importing resources, allowing them to load modules properly and efficiently, including those that define classes with metatables. This function includes caching to avoid redundant loads and circular dependency checks to prevent infinite loops.

---

Example Usage

--- resource1/modules/CStudent.lua
local Student = {}
Student.__index = Student

function Student.new(name, age)
	local self = setmetatable({}, Student)
	self.name = name
	self.age = age
	return self
end

function Student:getInfo()
	return ("Name: %s | Age: %d"):format(self.name, self.age)
end

return Student

--- resource2/server/main.lua
local CStudent = require("@resource1.modules.CStudent")

local student = CStudent.new("John Doe", 18)
print(student:getInfo()) -- Output: "Name: John Doe | Age: 18"

PR Checklist

• My commit messages and PR title follow the Conventional Commits standard.
• My changes have been tested locally and function as expected.
• My PR does not introduce any breaking changes.
• I have provided a clear explanation of what my PR does, including the reasoning behind the changes and any relevant context.