Lua Scripting Restructured code

[rzsavilla]

• Create entities with Lua script
• Lua entry points run and variables
• Added more functions to control entities

Able to create entities using scripts, Entities have a handle which acts as an interface between lua and C++.

Two entry points when running the script, these scripts are absolutely required. run.lua and variables.lua

run.lua scripts handles the updates of scripts variables.lua stores all variables such as entities and resources