Triangulation algorithms to find your location

[ngtduc693]

Implemented a triangulation algorithm to calculate your position based on distances from three base stations.

• I have performed a self-review of my code
• My code follows the style guidelines of this project
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Comments in areas I changed are up to date
• I have added comments to hard-to-understand areas of my code
• I have made corresponding changes to the README.md

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.07%. Comparing base (013a6b9) to head (6017e7a).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #488      +/-   ##
==========================================
- Coverage   95.08%   95.07%   -0.02%     
==========================================
  Files         257      259       +2     
  Lines       10669    10711      +42     
  Branches     1503     1504       +1     
==========================================
+ Hits        10145    10183      +38     
- Misses        400      403       +3     
- Partials      124      125       +1     

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