Allow exporting visits in CSV format

[acelaya]

Part of #2311

This PR enhances all visits commands (short-url:visits, tag:visits, domain:visits, visit:orphan and visit:non-orphan) so that the output can be human-friendly (default behavior) or CSV, via --format=csv.

Additionally, a new --format=paginated option has been added, which behaves similar to current format, but the visits are rendered in 1000-item chunks, with the header printed before every chunk, and the table sized differently if needed.

Both csv and paginated formats can avoid out-of-memory errors if the list of visits is too big.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 94.62%. Comparing base (6eb9419) to head (248e803).
⚠️ Report is 6 commits behind head on develop.

Additional details and impacted files

@@              Coverage Diff              @@
##             develop    #2562      +/-   ##
=============================================
+ Coverage      94.60%   94.62%   +0.02%     
- Complexity      1637     1644       +7     
=============================================
  Files            273      273              
  Lines           5093     5117      +24     
=============================================
+ Hits            4818     4842      +24     
  Misses           275      275              

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