[x] Create a person object: take in the email, password, age, name, gender, height (in), weight (lbs)
[x] Input data for a person object: take in email, password, steps, calories, day, month, year
[x] Get data for a person object: take in email, password and get out active steps, active days, average steps, days where each has year/month/day, steps, calories, distance traveled