awdy: A tqdm-like progress bar for Mojo

with awdy(total=100, leave=True) as pb:
    for i in range(100):
        sleep(0.05)
        pb.update()
        if i == 49:
            awdy.write('Halfway done!')

with awdy(total=100, leave=True) as pb:
    for i in range(100):
        sleep(0.05)
        pb.update()
        if i == 49:
            awdy.write('Halfway done!')