Mod Support for Map Editor

Have map editor be able to load mod content and use mod resources. Right now you have to enter a game with free cam from a mod then exit and load map editor to use it. Map editor doesn't load any modded resources meaning you have to either use mod in-game or console commands to add them to a map reducing performance and potentially causing errors, each and every time you want to use the modded resources on a new map. The games mod loader could be used with a simple script to check for additional resources and texture info for them when starting Map Editor.