NamePlate Improvements

[NickMillion]

My git was freaking out about perms and branch nonsense so I just axed all my local stuff and re-forked and now it's working right.

Adds more functionality and customization to NamePlates:

• Replaced instances of Vector3.Distance in update screen space position with sqrMagnitude for better performance
• Separated NamePlates into their own config category
• Added option to completely hide the health bar
• Added option to enable nameplates through PiP optics
• Added option to decrease opacity of nameplates in peripheral
• Added option to adjust opacity of nameplates while aiming
• Added option to hide nameplates past a certain distance w/ fade out and shrink
• Added option for minimum opacity
• Added option for minimum nameplate scale
• Refactored to add throttled updating for element visibility; this also fixes certain elements not respecting the config changes after the awake()

I tried to use IsVisible for occlusion but it's basically nonfunctional, raycasting also had some issues so I removed it entirely

[Lacyway]

Need to fix DLSS/SSAA before I can merge, the peripheral alpha is not working well with it

[MerijnHendriks]

Thank you very much for your PR! It's appriciated!

Replaced instances of Vector3.Distance in update screen space position with sqrMagnitude for better performance

Is it possible for you to split this into a separate PR? I would like to keep this PR a bit smaller to make it easier to review and revert in case it's required 👍

[NickMillion]

This PR only includes the changes within the FikaHealthBar.cs file; it should be pretty self-contained.

I've essentially just refactored most of FikaHealthBar.cs while adding the new options and functionality with the only other file changed being FikaPlugin.cs to add the new config options.