general update

Partial enhancements:

• show affine warped pairs
• rename dataset files accordingly
• add bash script for image scaling
• use the smallest image for evaluation
• compute rTRE
• PEP8 & flake8 check
• minor refactoring
• update logs & docstring
• update README
• move tests

Corrections and bug fixing:

• fix loading very large images
• fix figure size in visual
• update warning in annot. generate
• skip missing image folders in visual
• IJ macro - force show labels
• visual only pair common landmarks
• add failed image load
• suppress PIL warning
• suppress bomb error

Dataset annotation

The release contains annnotation landmark and user annotation of CIMA histology dataset. The tutorial describes how to create landmark annotation of histology images and how to use evaluation and visualisation scripts. The repository contains use landmark annotation for the CIMA histology dataset with a few image examples.