Updated dependencies required by python-socksipy

I took a look at the commit to use python-socksipy (commit 8666fb77d36e3de3f1827fba20e5c24573862391) and it looks like it requires a few updates to debian dependencies listed in the the BUILD.md file. This merge should fix this issue. Additionally, python-socksipy depends on python-central so I added that in as well.