auto_crop_fast now has a new input called cropping_factor. It defaults to 1 (which is how the size of the cropped square around the blob was previously determined, using 1* characteristic blob radius). Likely need to set e.g. cropping_factor = 1.3, once blob_factor has been chosen etc

auto_crop and get_pachytene gives same results for any input resolution, i.e. images found at the end of the pipeline are all the same

added option to specify an output path path_out in auto_crop_fast, get_pachytene in case user wants output crops in a different place to the original image files

add example usage to documentation. Single functions for auto_crop and measure_distance.  Passes BiocCheck with 0 errors, 0 warnings and 5 notes.