CS2 CustomIO For SwiftlyS2

Fixes missing keyvalues from CSS/CS:GO From https://github.com/darkerz7/CS2-CustomIO

Features:

1. Adds a custom Input-Output as in CSS/CS:GO: From cs2fixes

Required packages:

1. SwiftlyS2 (Min version: v1.2.0, just use beta pls)

Installation:

1. Compile and copy cs2-CustomIO to swiftlys2/plugins/cs2-CustomIO folder
2. Copy resources folder to swiftlys2/plugins/cs2-CustomIO folder
3. Restart server