Triangulation algorithms to find your location

[ngtduc693]

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

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

[ngtduc693]

Passed all of the unit test

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 95.03%. Comparing base (013a6b9) to head (e76452e). Report is 1 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #489 +/- ## ========================================== - Coverage 95.08% 95.03% -0.06% ========================================== Files 257 258 +1 Lines 10669 10697 +28 Branches 1503 1504 +1 ========================================== + Hits 10145 10166 +21 - Misses 400 405 +5 - Partials 124 126 +2 ```

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