utils.controls: new component Digest

[DavidDurman]

[vtalas]

test:

flow https://my.qa.appmixer.com/designer/f41f62c9-f4d3-4fa2-bab3-62ecb5cc2cb5/7f7ffa5c-a36d-4755-86e1-39ccb8b258b7

input

flow interates through the input array values, Digest has the threshold set to 2, output type: one at a time

results:
values 11111... and 2222... get duplicated:

The lock should be implemented to prevent this behavior

[vtalas]

the index on the output:

It's the index within the threshold, shouldn't be better to implement the total index instead?

[DavidDurman]

Lock: implemented.
@vtalas I don't see how "total index" would be useful? The index is just the standard index we have for array-type of outputs.