Cardio Animations for Random Exercise View

When cardio is selected either by random selection or by user picking a
cardio exercise in the picker, the picker will adjust itself
accordingly by hiding the labels and textfields that are not cardio
related.
* Also made some text color border changes for exercise detail view and
create new workout. They now reflect the same red color that is used
for the navigation bar.
*This has been memory leak tested and no leaks found with this commit.