Feature Request: Allow proxy for individual entries

[dross-carve]

Each entry in a hurl file has an optional [Options] section that can be used to provide overrides for the CLI-provided options. While options such as insecure are currently supported in this section, there does not appear to be a way to specify a proxy other than using the --proxy CLI argument.

From a quick look through the code base, it looks like this would require some minor edits to the get_entry_options() method along with some changes to how files are parsed to make a new EntryOption::Proxy enum variant.

[fabricereix]

hi @dross-carve,
yes, it could be naturally included in the [Options] section.
we can try to add it for the next release.