Add better support for cargo-binstall

[dkozma]

Changes in this pull request

Since users have had some issues installing from source due to building things like OpenSSL manually, this uses cargo binstall to allow users to download and install c2patool more easily using prebuilt binaries.

The main advantage with starting with this over Homebrew is that this supports all platforms, where Homebrew only supports macOS.

Note: I haven't been able to really test this since its difficult without having the releases posted and the crates.io information up to date, but hopefully it works. We may need to post a follow-up release or commit to main if there are issues.

This resolves #176.

Checklist

• [ ] This PR represents a single feature, fix, or change.
• [ ] All applicable changes have been documented.
• [ ] Any TO DO items (or similar) have been entered as GitHub issues and the link to that issue has been included in a comment.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 44.18%. Comparing base (1f28705) to head (6f8ed4d).

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #177 +/- ## ======================================= Coverage 44.18% 44.18% ======================================= Files 7 7 Lines 722 722 ======================================= Hits 319 319 Misses 403 403 ```

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