feat: add peat pull --skip-scan flag

[jgallagheriii]

Add peat pull --skip-scan flag

Description

• Add --skip-scan CLI flag to bypass scan phase and pull directly from hosts defined in a config file; removes requirement for -i/-f when a config with a hosts list is supplied
• Per-host peat_module mappings in the hosts list are respected; a single -d device type can be used as a fallback
• Add pull_skip_scan setting to Configuration and both example config files
• Add unit tests for skip-scan logic in pull_api and cli_args

Related Issue

Closes #60

Checklist

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[GhostofGoes]

Overall, this looks good, and adds a long-overdue feature to the CLI. Good work!