Added booking date based filters to reservations endpoint

reservations

GET /v1/reservation_data

Added booked_start_date and booked_end_date query parameters to filter reservations by booking date.

Added group and subgroup IDs to listing details endpoints

listings
GET /v1/listings and GET /v1/listings/{listing_id}

Responses now include group_id and subgroup_id.

Added channel listing IDs for directly connected listings

listings
GET /v1/listings and GET /v1/listings/{listing_id}

Listing IDs would be missing in channel_listing_details for listings directly connected to PriceLabs for Airbnb, Booking.com and Vrbo. This update adds it so that it returns the channel ID correctly.