-Fix Nextbots Detecter Bug.

-Fix a chat message text error.

-Fix errors (second time).
-Update the scoreboard text.

-Fix errors.

-Fix Bugs
-NOW IT WILL AUTOMATICALLY FIND THE MOUNTED NEXTBOT ADDONS!!!
Don't worry, the previous method still works.
-Now you can configure the player loadout in (server or game directory)/garrysmod/data/efn_loadout.json.
-Stability fixes.
-Only admins can kill Nextbot now.

-Add a smooth scoreboard.
-Optimized performance between server and client network data transfer.
-Optimized GUI.

OK, i found the reason of problem.
At the map initialization, class "info_player_start" isn't ready, that's why it dont work.
I tested many maps, they are all normal work.
Now Nextbots will spawn after 10 seconds at first player joined.

I'm sorry, now it should work.

-Now text in different languages will now be displayed according to the client language. ( English and Chinese )

-Stability fixes.
-Add "helpnb" chatbox command.
-Now you can edit Nextbots data in garrysmod/data/efn_nextbot.json.
-Add a Void Console. (but it's useless)