Implemented Palindrome Partitioning using Backtracking algorithm

[Trikcode]

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Describe your change:

• I have added Palindrome Partitioning, a new algorithm which involves partitioning a string into substrings such that every substring is a palindrome.

Checklist:

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized.
• I know that pull requests will not be merged if they fail the automated tests.
• This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
• All new JavaScript files are placed inside an existing directory.
• All filenames should use the UpperCamelCase (PascalCase) style. There should be no spaces in filenames.
  Example:UserProfile.js is allowed but userprofile.js,Userprofile.js,user-Profile.js,userProfile.js are not
• All new algorithms have a URL in their comments that points to Wikipedia or another similar explanation.
• If this pull request resolves one or more open issues then the commit message contains Fixes: #{$ISSUE_NO}.

[appgurueu]

• This should not be a class, but rather a single function. You can nest helper functions ("closures") within that function if it is useful.
• isPalindrome should be imported rather than implemented again.
• I believe this should probably be called "recursive" rather than "backtracking".