Heavy Demolitionist - Make the rigs accessories instead of belts

[MysteriousSpy]

Summary (a quick, 2-3 sentence summary):Make the grenade rig for the heavy demolitionist an accessory instead of a belt, allowing them to carry more grenades.

Benefits (How this will benefit the server and game as a whole):
Allows the heavy grenadier to use their extremely situational weapon and use it a bit more liberally, plus it'll break a meta of ditching your GL for the heavy armor because it's either bring the GL with extra grenade rounds or a gun (would free up the belt slot for SMG holsters)
Details (Description of how you think this would work, the benefits, etc): Turning it into an accessory item will allow the GL to use their weapon much more liberally than they are usually allowed, and it could be balanced out by taking it down to one rigging instead of two in the kit box.

Implementation (Optional, if you have an idea how to implement it): Should be a simple change in the code, though keep in mind I am no coder and am unaware of if this is a heavily complex process or not.