Where Would i Extract This?

Where Would i put this? Its a material pack for an addon that was supposed to have them, but didn’t, thus a patch ( i think ).

The ADDON: http://www.garrysmod.org/downloads/?a=view&id=61696
The PATCH: http://www.garrysmod.org/downloads/?a=view&id=61812

Addon = Addon Folder
Path = Addon Folder / Merge with existing