Add functionality to draw recognized faces on the screenshots (enhancement)

[san99tiago]

The current process ONLY detects the famous people, but does not actually "draw a face" on top of them...

The goal of this ticket, is to enable the "drawing of a rectangle" on top of the recognized faces from the previous workflows. Similar to this:

In order to achieve this, I recommend using "Pillow" library and the response from Rekognition

[san99tiago]

Functinality added with these commits:

• 18beb4073e511e9d3f389ea44e05cb1f9f682a1a
• 99a15293d102fb4ea8a9198d601e469005679b82
• 410bfb279f11ecada17030c6da323b516ced5bf3
• e321601d1b8569db7d1b70e81f2413596be3973d