Step 3

Branch Stage 3 (w/s 9-11-15)

Here I add a ComboBox to display the sexes of the animals. Two ways to do this are shown:

• Iterating over all Animals to establish a list of possible sexes
• Querying the enum to get a list of sex values

The second approach is more efficient but uses some new code. I also update the handling of the filtering to accomodate searches for all Sexes.