Add instance plugin

exp_groups/module/globals.lua

@@ -0,0 +1,9 @@
+--[[
+It is best practice to not expose any globals because all modules share a global environment
+However, sometimes you need globals, for example to access functions within rcon commands
+Therefore, we advise that this should be the only file in your module to expose globals
+Typically this would be your control file as shown in the example below
+]]
+
+-- Access using `/sc exp_groups.foo()`
+exp_groups = require("modules/exp_groups/control")