Write a function that checks whether a person can watch an MA15+ rated movie. One of the following two conditions is required for admittance:
The function accepts two parameters, age and is_supervised. Return a boolean.
accept_into_movie(14, True) ➞ True
accept_into_movie(14, False) ➞ False
accept_into_movie(16, False) ➞ True
age is a decimal.is_supervised is a boolean.