generic snakemake-wrapper-utils mechanism to move files at the end of a wrapper run, to work around tool-defined filenames

[dlaehnemann]

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The idea is to have a dictionary that keeps track of tool-defined file suffixes and output: filename=: https://github.com/snakemake/snakemake-wrappers/pull/3974/files#diff-fc2a3b28a6423504a3ad1b54913414d281d379e7245af9504d867e2586a11f9bR51-R65

This can then be used to systematically create move commands once the wrapper has done everything it should (usually in a throw-away TemporaryDirectory): https://github.com/snakemake/snakemake-wrappers/pull/3974/files#diff-fc2a3b28a6423504a3ad1b54913414d281d379e7245af9504d867e2586a11f9bR266-R269

This is a tracking issue, to not forget about this idea.