Migrating fireinfo to Python 3

Hello,

I went ahead and converted fireinfo to Python 3.

This was a little bit more work than usual because it has a little helper module written in C.

I could mainly use 2to3, but some things needed some manual attention. I split those into individual commits.

I would now like to invite everyone to manually install this version on their systems and let me know if it

a) works

and

b) does it keep the same ID?

The ID is being generated by a number of factors and if one bit in those changes, the system would receive a different ID which is something we would like to avoid.

It worked fine on my system, but I would like to have some larger sample size to be sure.

Best, -Michael