API for Writeups

[mfocuz]

Please add an API call to extract writeups.

I described here what would be enough for me, but I believe you may implement API for these endpoints with some extra funcs.

API call to get all writeups with pagination and sorting by at least date, or maybe more fields. (ex. https://ctftime.org/writeups) return values:

• event_id
• task_id
• tags
• author_team
• writeup_id
• original link(s) if exists
• points(or maybe add extra API call tasks to get points from there) (optional)