Have --min-split for jfrog rt upload

[scottrus]

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Uploading a large single file to artifactory with jfrog rt upload is slow.

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The --min-split option is available for jfrog rt download. This speeds up transfer of large single file artifacts to use multiple threads. The equivilent feature should be available for jfrog rt upload.

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None

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[lmrts]

+1

[lyqwaterway]

+1

[liwei2151284]

+1

[mathieugouin]

According to the doc: https://docs.jfrog-applications.jfrog.io/jfrog-applications/jfrog-cli/cli-for-jfrog-artifactory/generic-files it seems implemented:

Related, the unit for the default --min-split for the download is not clear (bytes?)