purpose keep track of a record collection using dictionaries

Purpose: keep track of a record collection (using dictionaries)

1. Let the user create a new artist
2. Let the user create a new record (must provide artist name)
3. Print current collection (dictionary contents) in nice format

Requirements:

• record data must be nested inside artist data
• record must have title & year
• use pickle to save/load data
• create only a single dictionary (with nested dictionaries)