feat: add pretty-printed logs. Closes #3

[radiovisual]

- [x] Errors are grouped by filename (locale)
- [x] Adds color highlighting
- [x] Uses a table for nice spacing
- [x] Expected | received diffs are shown in the logs
- [x] The rule name prints
- [x] Ignored errors are indicated
- [x] the final print summary should be cleaned up with good information (how many ignored, etc)

[codecov-commenter]

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.85%. Comparing base (e6ffe16) to head (2fd8ffc).

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Additional details and impacted files

@@           Coverage Diff           @@
##             main      #28   +/-   ##
=======================================
  Coverage   96.85%   96.85%           
=======================================
  Files          28       28           
  Lines         381      382    +1     
  Branches       70       70           
=======================================
+ Hits          369      370    +1     
  Misses         11       11           
  Partials        1        1           

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