Add parameter --skip-similarity-preprocessing.

[Irallia]

Add parameter --skip-similarity-preprocessing instead of --estimate-union and --rearrange-user-bins. Set it as
advanced.
If --max-rearrangement-ratio 1, then --rearrange-user-bins should be off, so the flag is not necessary.

[smehringer]

One thing that I just noticed:

What happens if --skip-similarity-preprocessing is set but --max-rearrangement-ratio is NOT 1. This would somehow mean that I want --rearrange-user-bins but not --estimate-union which is not possible.

EDIT: Ah I see. --skip-similarity-preprocessing disables both. Then we don't have this problem