Python3 application for streaming video & taking screenshots with official rpi camera v3

• just run python streamcam.py, app will be available on port 8000
• "Snapshot" button will take a photo storing it in current app and previews it
• "List" button will show you all jpg files in current app directory
• "Temp" button will read actual CPU temperature and sets i as button text

!!!Important - This code has been tested on RPI Zero 2 W, and cause it to overheat within 10 minutes - you will need passive cooling to manage this.