ItemStore - Inventory for DarkRP

* Fixed an issue where /invholster would still be allowed to function even when the player was restricted from accessing their inventory

* Optimized the function that determines if a player can access their inventory (should help client performance a little bit)

* Fixed a bug with Use With that effectively disabled this feature. Doesn't affect anything in stock itemstore but might be useful for devs.

* Hopefully fixed a bug affecting the darkrp 2.4 gamemode provider

* Shipments with default clips no longer give extra ammo when used from the inventory

1. Fixed weird handling of Clip1 and Clip2 in spawned_weapons that have more than one weapon in the stack
2. Changed how SplitWeaponAmmo works, now only affects reserve ammo, clip1 and 2 are always fully given on the first use and then set to depleted in the item itself
3. SplitWeaponAmmo is now default on to better match DarkRP vanilla ammo handling

* Fixed a duplication bug in the SplitItem function

1. itemstore.config.HighlightStyle and itemstore.config.HighlightColours. New item highlights system color codes items by their type. Changeable in config.lua, multiple styles of highlight to use including the old single color highlight system
2. itemstore.config.LimitToJobs. Job restrictions allows you to make the inventory only accessible by certain jobs.
3. New data provider "none" allows you to disable all inventory persistence
4. Money held in the inventory now properly shows it's currency unit
5. Smaller font for item counts

1. Fixed a possible lua spam bug

1. Save on disconnect -- this was disabled for various reasons prior that I've since resolved and should hopefully stop certain duplication exploits.

1. Added MySQLoo support. This functionality can be accessed using the "mysqloo" dataprovider. You must have mysqloo 9 installed. MySQLoo should be much more robust and capable of handling disconnections than the previous tmysql4 dataprovider. In the future, this will be the recommended data provider for MySQL support.
2. Renamed the old tmysql4 dataprovider to "tmysql4". This is there to provide legacy support for server owners who wish to remain on tmysql4, but I highly recommend updating to mysqloo.

1. Fixed a spammable netmessage error

1. Fixed an exploit that was able to cause Lua errors on the serverside.