remove "easy_" prefix from cli output

[atravitz]

see OpenFreeEnergy/ExampleNotebooks#190 for corresponding example notebooks PR

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• Added a news entry

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• I certify that this contribution is covered by the MIT License here and the Developer Certificate of Origin at https://developercertificate.org/.

[github-actions]

No API break detected ✅

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.87%. Comparing base (56c491b) to head (1b81bcd).
Report is 98 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1121      +/-   ##
==========================================
- Coverage   93.51%   91.87%   -1.65%     
==========================================
  Files         142      142              
  Lines       10608    10608              
==========================================
- Hits         9920     9746     -174     
- Misses        688      862     +174     

Flag	Coverage Δ
fast-tests	91.87% <100.00%> (?)
slow-tests	?

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[IAlibay]

There's a big file being added, should it be?