Fetching Extra Anime/Manga details

[irfan-dahir]

This parses after the anime() or manga() method and fetches from sub pages such as

https://myanimelist.net/anime/1/Cowboy_Bebop/video
https://myanimelist.net/anime/1/Cowboy_Bebop/episode
https://myanimelist.net/anime/1/Cowboy_Bebop/reviews
https://myanimelist.net/anime/1/Cowboy_Bebop/userrecs
and so on.

Each pages are individual, so they require more work and bandwidth.

Possible code use is

\MAL\GET->anime($id)->video()->episode()->reviews()

The data keeps getting accumulated in the returning array.

Low priority since it requires a lot of work. So I'll do it in the end.

[irfan-dahir]

Will be set as issues individually as 'Extended Data'.

E.g #19