$1)$ Write helper function generateValidMoves$()$

Your first task is to implement the helper function to generate the neighbors for a given location:

Set generateValidMoves$($Grid& maze, GridLocation cur$)$

Given a maze represented as a Grid of booland a current GridLocation cur, this function returns a Set of all valid moves from cur. Valid moves are those GridLocations that are:

Exactly one "step" away from cur in one of the four cardinal directions $($N$,$ S$,$ E$,$ W$)$

Within bounds for the Grid

An open corridor, not a wall

There are a few provided tests for generateValidMoves, but these tests are not fully comprehensive. Write at least $3$ additional tests to make sure your helper function works correctly. Remember to label your tests as STUDENT$\_$TEST.