Pipes work with pressure, no influence of gravity yet.
Tanks are optimized: 
	- they know how big they are in total.
	- they verify only on neighbor change and not every frame.
	- pressure is provided downwards:
		below.pressureAbove = this.pressure + this.pressureAbove
	- rendering of states is still buggy.
Merge branch 'master' of https://github.com/tobiasvdp/industrialProcessing.git
Merge branch 'master' of https://github.com/tobiasvdp/industrialProcessing.git
Merge branch 'master' of https://github.com/tobiasvdp/industrialProcessing.git
New Recipe lookup for guide and consorts