Make flames ignore bouncy world edge
Rationale: Flame speed heavily relies on wind and cannot be reasonably reversed.
The rationale is similar as for gtPoisonCloud.
AAAAaXicAWkAlv8ITgKBAAmqA0YACZMErAAISQV1AAbfBXoABZEEsAAFVQM9AAbWAoYAB5cAqpkHlwc7AAMmA/WZDB4D9QADtAEBmQtiBvIAA7kHCZkLawD8AA2jAaaFDboGDYUBhQYthQGPAlSFB6AEC/E0HxtP