NUTs: info endpoint method settings

[callebtc]

Addresses cashubtc/nuts#82

Closes #485

[codecov]

Codecov Report

Attention: Patch coverage is 71.42857% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 68.59%. Comparing base (e93837f) to head (d82ad2f).

❗ Current head d82ad2f differs from pull request most recent head c4acb44. Consider uploading reports for the commit c4acb44 to get more accurate results

Files	Patch %	Lines
cashu/mint/router.py	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #487   +/-   ##
=======================================
  Coverage   68.58%   68.59%           
=======================================
  Files          74       74           
  Lines        6685     6690    +5     
=======================================
+ Hits         4585     4589    +4     
- Misses       2100     2101    +1     

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