Extend the scope of the project

[xaviergmail]

This is a fork I've been using personally for a while and I decided I might as well give back to the community so here it is. I'm making this PR to hopefully get it some extra publicity from the existing thread on the facepunch forum than trying to market my own fork.

These additions are what I feel make this library complete. I can't really think of anything else I'd like to add other than GM:NetRequest/Net/Client/GlobalVarChanged hook to capture every change regardless or entity or key but I can't think of a good use case for that, so I decided against it. I also think adding hooks to NetRequests should be relatively easy so that might be my next move.

This PR adds the following:

• NetVar Hooks ( Currently does not support net requests )
• ClientVars (NetVars that are only networked to a single client for say HUD elements and whatnot)
• GlobalVars (NetVars on game.GetWorld())
• Persistent Vars (Save and restore player volatile (current lua state only) variables (NetVar, NetRequest, ClientVar) on reconnect)

I suggest you view the README as well as the examples

[Mista-Tea]

Hey, I'm just following up to say I'm not ignoring this PR, I'm just incredibly busy outside of GMod anymore and haven't had a chance to check this out. I think it's awesome how much you've expanded the project.

[FoksVHox]

Any news on this PR @Mista-Tea ?

[xaviergmail]

Just going through and cleaning my open PRs!

In case anyone finds this in the future, I've essentially moved on away from Garry's Mod development, but the changes outlined in this PR along with more utilities can be found in xlib