PR and migrate to `noir-lang/noir/examples`

[Savio-Sou]

https://github.com/noir-lang/noir/tree/master/examples hosts a few example Noir programs.

Creating this Issue to discuss should this repo be migrated to noir-lang/noir/examples.

Pros

• Always up-to-date, making sure this program is tested and updated against latest Noir developments

Cons

• Lengthen Noir's CI times