Adds Haskell Bindings

[daniel-j-h]

context - work in progress, do not merge (yet?) - mostly a shared playground.

cc @hrantzsch @reactormonk @sjsyrek @aische

[reactormonk]

sweephs-exe: /home/travis/build/scanse/sweep-sdk/libsweep/src/dummy.cc:70: sweep_device_s sweep_device_construct_simple(const char *, sweep_error_s *): Assertion `error' failed.