chore: Move idgenerator dep to util project

[ghislainbourgeois]

Changes the import path of the idgenerator module to use the util project. Tested with a successful simulation with gnbsim.

[gab-arrobo]

@ghislainbourgeois, just to confirm, you are verifying that the code (functions, variables, etc.) from the "tiny" repo (idgenerator in this case) is exactly the same as the one in the util repo (util/idgenerator), correct?

[ghislainbourgeois]

@ghislainbourgeois, just to confirm, you are verifying that the code (functions, variables, etc.) from the "tiny" repo (idgenerator in this case) is exactly the same as the one in the util repo (util/idgenerator), correct?

There are small differences that should not impact the behavior. But I ran a full test to make sure.

[gab-arrobo]

+1 (tested changes with AiaB)