BUG: Fix misalignment when calculating firstorder voxel-wise
BUG: Fix misalignment when calculating firstorder voxel-wise

In firstorder, image array is padded to ensure full kernels are always possible. However, this requires an update of the kernel coordinates, which need to be done on a copy of the coordinates to prevent misalignment in the results feature map.

Radiomics/pyradiomics,Radiomics/pyradiomics,Radiomics/pyradiomics,Radiomics/pyradiomics