Added an indented representation and json outfile in different functions

[Ali-Al-Hadi-Al-Husseini]

added to functions:

1. get_comments_from_url_json_file

   1. added two arguments indent and output_limit

      1. indent specifies how many space to add in the output
      2. output_limit states how many comments to output to the file

   2. doesn't return anything and outputs the result to the output.json file

2. get_comments_from_url_prettier

   1. added two arguments as above
   2. wrapped comments in a custom Comment class

doesn't affect the original code

[egbertbouman]

I'm not sure about merging this as I don't think it's needed. Anyone using this script as a library would be more then capable of doing something meaningful with the comment dicts.

I'll work on adding a pretty print option to the CLI, though.

[Ali-Al-Hadi-Al-Husseini]

Oh, I see your point