Adds electric versions of the stone and steel furnaces, and an electric boiler. This is an update and tweak to the Electric Furnaces mod by 'GotLag', later revised by 'yukisoha'.
I would like to have a way to adjust the crafting speeds of the furnaces. The electric steel furnace is faster than an electric furnace for instance. I would like to make it the same as a steel furnace.
