Add bean-format

[elken]

Might also require some kind of deindent formatter (may be that we
introduce some generic formatters like that to chain other against?)
but otherwise should work fine

[elken]

Test will likely fail due to #99

[raxod502]

Interesting, what's the indentation problem? Does the formatter not work well when applied to an already-formatted file?

[elken]

It's just a very simple formatter that doesn't deindent, even the tests just use python textwrap to do that.

[raxod502]

What do you mean by deindent? When I hear that word I think of reducing the indentation level of a block of code, but your reference to the textwrap module makes me think you're talking about hard-wrapping long lines of text into paragraphs.

[elken]

I do indeed mean reducing indentation, perhaps the tests are misusing that module then.

All this does is align columns of numbers, if the indentation is wonky it doesn't adjust it.

[raxod502]

I think it's fine to leave as is. If formatting this file format requires additional functionality then it should be added into the formatter, not hacked on top in an Emacs package!