Add greedy pathfinding algorithm

[Jonatan-Chaverri]

Closes #99

Introduced changes

• Add greedy pathfinding algorithm

Checklist

• Linked relevant issue
• Updated relevant documentation
• Added relevant tests
• Add a dedicated CI job for new examples
• Performed self-review of the code

[Jonatan-Chaverri]

@bal7hazar PR ready for review! Thanks

[bal7hazar]

Nice job!
I took the liberty of making few modifications to simply the code such as:

• Shuffle the directions when checking neighbors to avoid having hard coded patterns in game (like if the next move can either be North or West, we don't want it to be always North for instance but pseudo randomly one of those).