Add Conditional Value at Risk (CVAR) metric

[abdelrahman-ayad]

• Calculate CVAR and normalized CVAR (NCVAR) for ShortfallSamples

[codecov-commenter]

Codecov Report

❌ Patch coverage is 91.66667% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.35%. Comparing base (fbde94e) to head (3547a87).

Files with missing lines	Patch %	Lines
PRASCore.jl/src/Results/Results.jl	0.00%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #100      +/-   ##
==========================================
+ Coverage   83.13%   83.35%   +0.21%     
==========================================
  Files          45       45              
  Lines        2325     2385      +60     
==========================================
+ Hits         1933     1988      +55     
- Misses        392      397       +5     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.