[feat] Add a --rerun-failed option that will allow ReFrame to run only the failed test cases in a separate invocation

[rsarm]

Closes #1222

[codecov-commenter]

Codecov Report

Merging #1486 into master will decrease coverage by 0.16%.
The diff coverage is 17.24%.

@@            Coverage Diff             @@
##           master    #1486      +/-   ##
==========================================
- Coverage   91.72%   91.55%   -0.17%     
==========================================
  Files          82       82              
  Lines       12924    12952      +28     
==========================================
+ Hits        11854    11858       +4     
- Misses       1070     1094      +24     

Impacted Files	Coverage Δ
reframe/frontend/statistics.py	95.62% <ø> (ø)
reframe/frontend/cli.py	74.87% <17.24%> (-4.49%)	⬇️

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[rsarm]

Closing in favor of #1538