Active RL Cost Experiments

Env:  Maze medium- easy version (costs)

Env:  Maze medium- easy version (rewards)

Env:  Maze medium- medium version (costs)

Env:  Maze medium- medium version (rewards)

Env:  Maze medium- hard version (cost)

Env:  Maze medium- hard version (reward)

Env:  Maze large - easy version (cost)

Env:  Maze large - easy version (reward)