(Local) Paced development

When the user develops a bit toolchain, s/he cannot test the toolchain if algorithms for all blocks are not implemented. This makes development a bit hard and demotivating.

A simple solution to this problem would be to implement some sort of "noop" algorithm that could live inside the "beat" user account.

In local execution mode (with beat run), if such an algorithm would be found, then it would not execute the current algorithm or any other following it. This would allow the user to place "beat/noop" as an algorithm in all blocks to be developed and focus on a single block at a time.