Resource estimation does not account for CAD

[Joel Teichroeb]

Here is a save game to test with. If you look at the science tab Orbital Enineering says it needs two more crafts of blue prints, but it really only needs one.

http://pastebin.com/7qRbLXNs

[Seth Leblanc]

Use getResCraftRatio for tooltip price breakdowns. Fixes #16.

→ <<cset be72ad10e5ca>>