Test: add unit test for mlflow, ray and datawrangler

[tanlin2013]

A lots of panics have appeared in mlflow, ray and datawrangler associated block.

For aws-data-wrangler, moto may help for test.

EDITED

• Since this project is data-oriented, we still run the test against the real one in Athena table, without using moto
• Gap ratio parameter should be tested with the mock data generated from poisson and wigner-dyson distribution
• Absolute offset wasn't correctly constructed
• level_id should be re-generated if in total_sz-constrained mode
• Filter out unexpected negative energy gap after taking diff