Migrate from Travis to GitHub Actions and CircleCI

[nuclearGoblin]

Template

The following template is not required, but if you do not use it, please be sure to include all answers to all of the questions in some other way.

Does your pull request resolve or partially resolve an issue? Yes

If Yes, which issue? Fully resolves #88.

Does your pull request implement code improvements? No.

Does your pull request implement any breaking changes? Yes

If breaking changes are implemented, please describe: In order to match the new build environments, some checksums adn filenames in the provided checksums file were altered.

Testing:
This pull request: [X] Alters the existing CI in some way. [ ] Adds a new step to the CI. [ ] Does not introduce any features that the CI could not already test. [ ] Is not accompanied by necessary CI changes due to some limitation described below. (Please also describe how new features can be manually tested.)

See the README.md file in the nrCascadeSim/tests directory for more instructions on how to make tests.

[codecov-commenter]

Codecov Report

Merging #105 (33cdce8) into develop (d91a9b7) will decrease coverage by 0.57%. The diff coverage is n/a.

@@             Coverage Diff             @@
##           develop     #105      +/-   ##
===========================================
- Coverage    82.57%   81.99%   -0.58%     
===========================================
  Files           13       13              
  Lines         1245     1261      +16     
===========================================
+ Hits          1028     1034       +6     
- Misses         217      227      +10     

Impacted Files	Coverage Δ
src/weisskopf.cpp	100.00% <ø> (ø)
bin/regexPlayground.cpp	57.40% <0.00%> (-5.10%)	:arrow_down:
bin/realizeCascades.cpp	53.78% <0.00%> (-0.32%)	:arrow_down:
src/edepmath.cpp	48.64% <0.00%> (ø)

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