Add Discover Movie and TV Function

// DISCOVER
// Movie Discover
fun getDiscoverMovie(
    language: String?,
    region: String?,
    sort_by: String?,
    certification_country: String?,
    certification: String?,
    certification_lte: String?,
    certification_gte: String?,
    include_adult: String?,
    include_video: String?,
    page: String?,
    primary_release_year: String?,
    primary_release_date_gte: String?,
    primary_release_date_lte: String?,
    release_date_gte: String?,
    release_date_lte: String?,
    with_release_type: String?,
    year: String?,
    vote_count_gte: String?,
    vote_count_lte: String?,
    vote_average_gte: String?,
    vote_average_lte: String?,
    with_cast: String?,
    with_crew: String?,
    with_people: String?,
    with_companies: String?,
    with_genres: String?,
    without_genres: String?,
    with_keywords: String?,
    without_keywords: String?,
    with_runtime_gte: String?,
    with_runtime_lte: String?,
    with_original_language: String?,
    callback: MovieResultCallback<Discover<DiscoverMovie>>

)

// DISCOVER
// TV Discover
fun getDiscoverTv(
    language: String?,
    sort_by: String?,
    air_date_gte: String?,
    air_date_lte: String?,
    first_air_date_gte: String?,
    first_air_date_lte: String?,
    first_air_date_year: String?,
    page: String?,
    timezone: String?,
    vote_average_gte: String?,
    vote_count_gte: String?,
    with_genres: String?,
    with_networks: String?,
    without_genres: String?,
    with_runtime_gte: String?,
    with_runtime_lte: String?,
    include_null_first_air_dates: String?,
    with_original_language: String?,
    without_keywords: String?,
    screened_theatrically: String?,
    with_companies: String?,
    with_keywords: String?,
    callback: MovieResultCallback<Discover<DiscoverTv>>
)