feat: add global setting option for brief=

[rich-iannone]

This PR adds the ability to set a global brief= value when using the Validate class. The brief= parameters in the various validation methods can always override the globally set value.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.04%. Comparing base (09d9aef) to head (eb5c763).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #128   +/-   ##
=======================================
  Coverage   99.04%   99.04%           
=======================================
  Files          17       17           
  Lines        3649     3651    +2     
=======================================
+ Hits         3614     3616    +2     
  Misses         35       35           

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