feat: add lib table for exports

Anything assigned to the table will be exported; it's just a hacky way to provide support for Lua Language Server.

resource/main.lua

@@ -0,0 +1,8 @@
+-- Creates exports from values assigned to lib.
+-- Hacky workaround for Lua Language Server support.
+
+lib = setmetatable({}, {
+    __newindex = function(self, name, fn)
+        exports(name, fn)
+    end
+})