Added hostUuid to results

A possible solution for #230 , this grabs the hardware uuid using `getHostUuid` and and includes it in the results.

A few notes:
* `getHostUuid` requires you to specify a wait argument to tell it how long to wait before failing. Currently, it can wait indefinitely. Probably not what we want.
*  This probably doesn't need to to call `getHostUuid` every time query runs; once initially would be best. Mike suggested using RocksDB for this. Can someone elaborate on how I would do this?
* I don't write a lot of C++, might have made some noobie mistakes :)

Things I still need to do:
* make format
* valgrind and such