* Bugfixes for terrain surface data.
1. Changed the TerrainSurfaceDataSystem component to query for all the surface types, now that we have them.
2. Added dependency tracking to the TerrainSurfaceGradientList component so that it will refresh terrain data when any of its data changes.
Signed-off-by: Mike Balfour <82224783+mbalfour-amzn@users.noreply.github.com>
* Addressed PR feedback
Signed-off-by: Mike Balfour <82224783+mbalfour-amzn@users.noreply.github.com>