support for lists

[yeedle]

The javascript json-mask implementation supports lists/arrays, while this implementation doesn't.

json-mask:

> const mask = require('json-mask');
> mask({ p: [{a: 1, b: 2 }], z: 1 }, 'p/a,z')
{ p: [ { a: 1 } ], z: 1 }

jsonmask:

>>> import jsonmask
>>> jsonmask.apply_json_mask({'p': [{'a': 1, 'b': 2}], 'z': 1}, 'p/a,z')
{'p': [{'a': 1, 'b': 2}], 'z': 1}

It would be nice if jsonmask would support this. If you'd like I can open a PR.

[harmonm]

@yeedle i need this too

[juanyque]

Hello @yeedle and @harmonm,

Just to tell you that: after trying to push improvements in this library without success, I have decided to clone it and evolve it on my own, now there is a new library in PyPI, jsonmask-ng, with the proposed improvements and others that I have needed.

I'm doing my best, but I'm no so much expert in python. Any comment about it will be welcome and I will try to attend suggestions.

Regards