libcurl: add option to enable SSL sessions export in curl executable

[scherbatey]

Summary

Changes to recipe: lib/[version]

Motivation

Details

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• Read the contributing guidelines
• Checked that this PR is not a duplicate: list of PRs by recipe
• If this is a bug fix, please link related issue or provide bug details
• Tested locally with at least one configuration using a recent version of Conan

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