Shortest path finder

[ramana2074]

Related Issues or bug

• Shortest Path Finder

Fixes: #467

Proposed Changes

• Shortest Path finder is a GUI application which finds the shortest possible path between two points placed by the user on the board. The shortest path is marked with "Purple" colour. The program also shows the area of the board tracked by the algorithm in "Red" colour to find the shortest path. The "Green" border represents the border of the area tracked. The user can create obstacles simply by clicking on the cell on the board which is represented by "Black" colour. The start point is marked with "Yellow" colour and the end point is marked with "Sky Blue" colour.

[github-actions]

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[github-actions]

🎉🎉 Thank you for your contribution! Your PR #522 has been merged! 🎉🎉