Revert "Revert "Gym scene""

This reverts commit 7720f32144a9f14425e39386c0886da5574db4e7.
Revert "Revert "Gym.unity commit""

This reverts commit c5b705873746bdc395983dea12602f038c64f3e9.
Bringing back Stephens Gym.
Combined the Gym and the Field together

This combination is a part of FinalScene.Unity
Please open it and look at how it works, but don't modify the actual
scene file, or it'll make it harder to put it all together later.
Changed Gym.Unity.Meta

Maybe this wont ruin everyone's day.