Feature/problem 27

[abda-gaye]

Describe your change:

• [x] Add an algorithm?

Checklist:

• [x] I have read CONTRIBUTING.md.
• [x] This pull request is all my own work -- I have not plagiarized.
• [x] I know that pull requests will not be merged if they fail the automated tests.
• [x] This PR only changes one algorithm file.
• [x] All new JavaScript files are placed inside an existing directory.
• [x] All filenames use the UpperCamelCase (PascalCase) style.
  • Example: Problem027.js and Problem027.test.js are allowed.
• [x] All new algorithms have a URL in their comments that points to Wikipedia or another similar explanation.
  • Algorithm Description
• [ ] If this pull request resolves one or more open issues, then the commit message contains Fixes: #{$ISSUE_NO}

Algorithm Description

I have implemented a new algorithm in the Problem027.js file, along with a corresponding test file Problem027.test.js to ensure its functionality. This algorithm addresses the problem described in the following link: Project Euler Problem 27.