rawspeed: implement RawImageData::getDataUncropped()
Bauhaus: add dt_bauhaus_slider_set_boundaries
Needed preparations for loading of uncropped, unscaled (B/W) raw images
dt_imageio_open_rawspeed*(): break everything! Stop cropping & scaling (B/W)
dualiso: initial rawspeed black border routing.
Crop black borders in preview and full
TODO: ???
wip: b/w scaling in dual iso module
dualiso: crop floating point buffers
dualiso: scale floating point buffers
dualiso: fix for scaling of uint16_t buffers