Write a program that takes three inputs: height, width, and character. Use your knowledge of loops to create a box made of characters based on the inputs.
>>> create_box(3, 4, '*')
'****
****
****'
>>> create_box(2, 2, '@')
'@@
@@'Ideas for enhancements in case of extra time:
- Add error checking to make sure the width and height is greater or equal to 1
- For an extra challenge, make it so only the outer border of the box shows and it is not filled in
- Add an extra unit test for the third case in the tests file