Add bencode-to-json and bencode library copied from BitTorrent-bencode-5.0.8.1
Add .gitignore
Add json-to-bencode

Have not tested that this roundtrips properly yet
Use OrderedDict so that bencode->JSON->bencode round trips identically
Refactor; MIT -> ISC license
Move bencode modules to their own directory
Fix import; accept filename arg as well as stdin; pretty-print JSON
Add bencode license note