add password encryption
create and save a workout

- able to create and save a workout with exercises from the "Fitness ->
Create" page
fixed displaying Workout in home page

- display passed workout count
- display future workout count
- display todays workout if there is one. Added video as well
fixed initial date format

- when the day is less than 10, there is no '0' padding. add this '0'
padding
delete a workout
save an exercise to a workout via library