Experimental Welding Tool R&D

Changed the upgraded welders to include another origin tech
Changed the origin tech of experimental Welders
Changed the code for the experimental Welders to have a cooldown of a certain set time of currently 30 seconds until a unit of fuel refuels

Added the experimental welder to R&D designs list and moved other designs to be under a new section in the code so it makes more sense.
It's not retarded, there are a lot of welders at roundstart, most of them are not even going to be used. If they aren't on the process list then they won't be lagging for no purpose.