Generalise ROI to Frame

[Haydnspass]

Decouple ROI to Frame from SplinePSF. General ROI to Frame should:

• Map stack of rois to stack of frames

ROI:

• size N x H x W

Frame:

• size N x H x W

Mapper:

• map, maybe weight

Use implementation from cuda. Related to https://github.com/TuragaLab/DECODE/issues/181