feat(server): triggerClientEvent with multi-target support

Since that once fivem PR is forever pending review.

imports/triggerClientEvent/server.lua

@@ -0,0 +1,23 @@
+---Triggers an event for the given playerIds, sending additional parameters as arguments.\
+---Implements functionality from [this pending pull request](https://github.com/citizenfx/fivem/pull/1210) and may be deprecated.
+---
+---Provides non-neglibible performance gains due to msgpacking all arguments _once_, instead of per-target.
+---@param eventName string
+---@param targetIds number | number[]
+---@param ... any
+function lib.triggerClientEvent(eventName, targetIds, ...)
+    local payload = msgpack.pack_args(...)
+    local payloadLen = #payload
+
+    if type(targetIds) == 'table' and table.type(targetIds) == 'array' then
+        for i = 1, #targetIds do
+            TriggerClientEventInternal(eventName, targetIds[i] --[[@as string]], payload, payloadLen)
+        end
+
+        return
+    end
+
+    TriggerClientEventInternal(eventName, targetIds --[[@as string]], payload, payloadLen)
+end
+
+return lib.triggerClientEvent