SCD41 CO2 sensor example

[MichaelBell]

I quickly ported the CO2 sensor example from PicoVision.

[exussum12]

The error handling doesnt work too well currently

loop = False
try:
    breakout_scd41.init(i2c)
    breakout_scd41.start()
    vector.text("Waiting for sensor to be ready", 0, 50)
    presto.update()
    breakout_scd41.ready()
    loop = True
except Exception as e:
    print(f"Error waiting for sensor: {e}")
    vector.set_font("osansb.af", 25)
    vector.text("SCD41 breakout not detected :(", 0, 50)
    vector.text("but you could buy one at pimoroni.com ;)", 0, HEIGHT - 120)
    presto.update()

while loop:

Replacing the top section with that seems to work much better for me. Main issues are crashing further down, the error not being clear