V1 environment step should apply collapse before and not after V0 step

[suphoff]

Logically wall collapse happens before the next V0 environment game step - as observations, game done state and winners are all determined by the V0 environment game step.

However rendering currently sees an updated board - that is inconsistent with the observations.
( Example render shows no agents (all caught by collapsing wall) - but game is not done.

As this only affects rendering I suggest fixing it after the competition submission deadline.
( Just move the code collapsing the wall before the V0 step )

[cinjon]

Aye. Thanks, will wait like you suggest.