Meshing doesn't work on voxel volumes with non-identical length, width, and height

[austinderic]

Meshing doesn't work on voxel volumes with non-identical length, width, and height

[schornakj]

Correction to the above: reconstruction didn't work with the Xtion with differing volume edges anymore.

Partial fix: voxel volume dimensions weren't being properly set from parameters, which resulted in some volume dimensions being rounded down to zero. Reconstruction works with small and/or weirdly-shaped volumes.

[schornakj]

Interestingly, reconstruction with the Ensenso doesn't seem to work under these conditions either. It resets every frame and doesn't integrate new readings into the volume. Last time I tried the Xtion it reconstructed with a NxNxM volume just fine.

[schornakj]

This should be resolved in feature/better_volume_control. kinfu_server wasn't getting voxels from the right indices when serializing the volume.