Add generator object in utils module

[ignatiusmb]

a generator object would be nice for, let's say, object IDs that would start at a random hash but increments for each consecutive calls for the next ids. we could theoretically just use random.uuid for this, but it might be too random and overkill for simple cases.

it's basically a simpler uid that is not just 1, 2, 3, 4

const generate = generator();

generate(); // 128acb00
generate(); // 128acb01
generate(); // 128acb02
generate(); // 128acb03