Collection schedule by user

[IsaacMilarky]

Description
Add a mechanism to enforce a standard of fairness between collection instances with multiple users. This is done in two parts:

Part A (Handle repos that haven't been collected):

1. Split up all users that have new repos into 4 randomly assigned groups
2. For each group:
   • query a set of new repos that belong to this group of users sorted by lowest weight first
   • Start repos up to the limit, break if the max_repo limit is reached

Part B (Handle repos that have been collected before):

1. Split up all users into 4 randomly assigned groups
2. For each group:
   • query a set of old repos that belong to this group of users sorted by lowest weight first
   • Start repos up to the limit, break if the max_repo limit is reached

This mechanism is used for all collection hooks: core, secondary, and facade.

@ABrain7710 and I developed this general algorithm over a meeting this week

Signed commits

• Yes, I signed my commits.