feat(misc): Added barycentric data generation

1. Implemented `misc/generate.py` script to generate test data for barycentric formula interpolation.
   `mp.dps = 30` was chosen as the smallest multiple of 10 that gives the most accurate results after rounding to `precision = 17`.
2. Created `misc/barycentric.toml` as the output of the script.
3. Updated `verify_data.py` to verify the generated data against the saved data.

Author: pasabanov