Implement more beta api endpoints

[IchBinLeoon]

This pull request adds more beta api endpoints to the library.

Browse

Browses the crunchyroll catalog filtered by the specified options and returns all found series and movies within the given limit.

// Filters for dubbed action and fantasy series, sorted by popularity
options := crunchyroll.BrowseOptions{
    Categories: []string{"action", "fantasy"},
    IsDubbed:   true,
    Sort:       crunchyroll.POPULARITY,
    Type:       crunchyroll.SERIES,
}

// Returns 5 entries filtered by the options
series, movies, err := crunchy.Browse(options, 5)

// Filters for slice of life series and movies from the winter 2022 simulcast, sorted alphabetically
options := crunchyroll.BrowseOptions{
    Categories: []string{"slice of life"},
    Simulcast:  "winter-2022",
    Sort:       crunchyroll.ALPHABETICAL,
}

// Returns 3 entries filtered by the options
series, movies, err := crunchy.Browse(options, 3)

Returns arrays of *crunchyroll.Series and / or *crunchroll.Movie.

Categories

Returns all available categories and possible subcategories.

// Don't include subcategories
categories, err := crunchy.Categories(false)

// Include subcategories
categories, err := crunchy.Categories(true)

Returns an array of *crunchyroll.Category.

Simulcasts

Returns all available simulcast seasons for the current locale.

simulcasts, err := crunchy.Simulcasts()

Returns an array of *crunchyroll.Simulcast.

News

Returns the top and latest news from crunchyroll for the current locale within the given limits.

// Returns 2 top and 5 latest news
top, latest, err := crunchy.News(2, 5)

Returns two arrays of *crunchyroll.News.

Recommendations

Returns series and movie recommendations from crunchyroll based on the currently logged in account within the given limit.

// Returns 10 series or movies
series, movies, err := crunchy.Recommendations(10)

Returns arrays of *crunchyroll.Series and / or *crunchroll.Movie.

UpNext

Returns the episodes that are up next based on the currently logged in account within the given limit.

// Returns 5 episodes
episodes, err := crunchy.UpNext(5)

Returns an array of *crunchyroll.Episode.

SimilarTo

Returns similar series and movies according to crunchyroll to the one specified by id within the given limit.

// Returns 5 series or movies similar to the series with id GRJ0J828Y
series, movies, err := crunchy.SimilarTo("GRJ0J828Y", 5)

Returns arrays of *crunchyroll.Series and / or *crunchroll.Movie.

WatchHistory

Returns the history of watched episodes based on the currently logged in account from the given page with the given size.

// Returns 10 episodes from the first page of the history
episodes, err := crunchy.WatchHistory(1, 10)

Returns an array of *crunchyroll.HistoryEpisode.

Account

Returns information about the currently logged in crunchyroll account.

account, err := crunchy.Account()

Returns *crunchyroll.Account.

[bytedream]

LGTM

[bytedream]

Unexpected side effects were caused lul