Removed TIFF DPI rounding #5446
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hugovk
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May 9, 2021
Co-authored-by: Hugo van Kemenade <hugovk@users.noreply.github.com>
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Helps #4129 by removing TIFF DPI rounding when loading and saving.
Because the dpi values are no longer converted to int, they are now IFDRational - so in order to allow existing pickling tests to continue passing, I have added
__getstate__and__setstate__to IFDRational to allow it to be pickled.