Add debian packaging

[vdloo]

Add Debian packaging so we can run this through the hypernode CI

root@abbrp7-vdloo-magweb-do ~ # dpkg -i neopi_20170501.105316_all.deb 
(Reading database ... 119591 files and directories currently installed.)
Preparing to unpack neopi_20170501.105316_all.deb ...
Unpacking neopi (20170501.105316) over (20170501.105316) ...
Setting up neopi (20170501.105316) ...
root@abbrp7-vdloo-magweb-do ~ # neopi 

       )         (   (
    ( /(         )\ ))\ )
    )\())  (    (()/(()/(
   ((_)\  ))\ (  /(_))(_))
    _((_)/((_))\(_))(_))
   | \| (_)) ((_) _ \_ _|
   | .` / -_) _ \  _/| |
   |_|\_\___\___/_| |___|
   
Usage: neopi [options] <start directory> <OPTIONAL: filename regex>

Options:
  --version             show program's version number and exit
  -h, --help            show this help message and exit
  -c FILECSV, --csv=FILECSV
                        generate CSV outfile
  -a, --all             Run all (useful) tests [Entropy, Longest Word, IC,
                        Signature]
  -z, --zlib            Run compression Test
  -e, --entropy         Run entropy Test
  -E, --eval            Run signiture test for the eval
  -l, --longestword     Run longest word test
  -i, --ic              Run IC test
  -s, --signature       Run signature test
  -S, --supersignature  Run SUPER-signature test
  -A, --auto            Run auto file extension tests
  -u, --unicode         Skip over unicode-y/UTF'y files

build like: gbp buildpackage --git-pbuilder --git-dist=xenial --git-arch=amd64 --git-debian-branch=master