Adds Chemical Seed Splicing, Moves all hydroponics code to code/modules/hydroponics

http://i.imgur.com/LU6SIFq.png?1
This pull request adds the Seed Splicer.

You can use a reagent container on the Seed Splicer to scan the master reagent inside the reagent container to the buffer on the splicer. If something is already saved to the buffer it will overwrite it with the new data.
If you then use a Seed Packet on the splicer it will splice together the chemical and the seed's DNA, allowing that plant to grow that chemical.

That plant will then grow the chemical you splice in, allowing botany to become more useful to the chemists and the chef.

This pull request also moves all the hydro related code to code/modules/hydroponics because why the fuck is everything so scattered