Bin2d (0.2.0) Rewrite

[Rikki Cattermole via Digitalmars-d-announce]

So Bin2D[0] has been rewritten and adds a bunch of nice new features.
- Limit generated code by:
  - package modifier
  - ``version(unittest)``
- Use enum for usage at compile time, instead of ``const(ubyte[])``
- Report with variable name to original filename

Only dependency is Phobos.
The rewrite adds most importantly usage of e.g. byChunk over the input 
files to limit the amount of memory used.

[0] https://github.com/rikkimax/bin2d