MTF mapper Code

fixed up polygon output for generate_rectangle

1. switched svg page over to using floating point coordinates
2. reworked lensgrid-slide to conform with Thorlabs format

added multi-pattern slide target type

version bump

improved Imatest chart cropping to handle trimodal histograms

added readme for docker, tweaks to container building

basic docker container for arm64, plus a Python watcher/processor

allow an LSF to have a peak away from the centre of the edge, but only if
the second peak is within 5% of the centre peak height; this affords
slightly more robustness when dealing with very noisy out-of-focus edges.

fixed some logger compiler warnings

extract Olympus fine tune adjust value