Implemented Partition Problem, Recursive problem (#1582)

* Add Tug of War solution using backtracking

* Updated Documentation in README.md

* Added Tug of war problem link

* Updated Documentation in README.md

* Updated Documentation in README.md

* Refactor tugOfWar: remove unused vars, optimize initialization, and remove redundant checks

* Added Function Export Statment

* Updated Documentation in README.md

* Resolved Code Style --Prettier

* Rename "backtrack" to "recurse"

* Fix test case: The difference needs to be exactly 1.

* Code Modification: subsets should have sizes as close to n/2 as possible

* Updated test-case of TugOfWar

* Changed TugOfWar problem to Partition

* Modified partition problem

* Updated Documentation in README.md

* fixed code style

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Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
Co-authored-by: Lars Müller <34514239+appgurueu@users.noreply.github.com>