Update hybrid solver mocks and add a CQM data generator

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 88.60%. Comparing base (b4f69a4) to head (fd0b931). Report is 123 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #639 +/- ## ======================================= Coverage 88.59% 88.60% ======================================= Files 42 42 Lines 4576 4580 +4 ======================================= + Hits 4054 4058 +4 Misses 522 522 ```

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[randomir]

These are just mock values, rounded down on purpose.