hwtypes merge

[rdaly525]

in reference to leonardt/hwtypes#34

@Kuree, we are trying to update hwtypes to include Floating Point types. This requires the following library dependencies: gmp, mpfr, mpc. Could you create a PR request which updates garnet appropriately?

You can look at the following travis file for an example. https://github.com/StanfordAHA/lassen/blob/fp-binary/.travis.yml

I am a little unsure how you are setting up travis for garnet, but I figure you could add these dependencies easily.

[Kuree]

Added with StanfordAHA/GarnetFlow@4b11ece.
This should propagate through every testing environment that uses this docker image.