Refactor FanslyAPI into python code

[robbydurano]

Refactor FanslyAPI into python. This has a config option to add sessionToken so that it can scrape more if you have a sub.

Additionally, tags are properly handled.

[robbydurano]

Test scenes:
Weird edgecase scene for fixing tags: https://fansly.com/post/865469941418045440 (still gets all tags)
Post with performer referenced: https://fansly.com/post/908138806861910016

[DogmaDragon]

I feel like Python scrapers should only be used when everything else fails to avoid adding dependancies.

Tag extration can be handled with JSON scraper and sessionToken can be added to the queryURL directly to be able to scrape locked content. Both cases requires user input outside Stash to pass the token. Added in bc4e92f.