Stock Market Addon | Control your economy

1. Fixed problem where it wouldn't allow players to invest in investment groups
2. Centred "Inside Trader" text on inside trader NPC (it sometimes wasn't)
3. You can now access stock menu via an NPC (accessed in Q menu -> Entites -> Other -> "Stock Trader")

I'm now back into the swing of updating my scripts, so this is what's coming in the next update:

1. Improved inside trader system (making it more advanced)
2. Adding an admin panel to manually run stock events & view recent trades
3. Custom Entities
4. Adding native support for more gamemodes (like SantosRP and nutscript)
5. Adding comprehensive Anguilla translations (currently you can translate stock events, and stock markets)

ETA: Soon