feat: Allow Specifying a Config File Path on Execution

[KokaKiwi]

• Also add CLI options parsing base

Checklist

• I have read the Contributor Guide
• I have read and agree to the Code of Conduct
• I have added a description of my changes and why I'd like them included in the section below

Description of Changes

• Add CLI options parsing
• Add --config/-f CLI flags for specifying a provided configuration file, preceding any default configuration path (edgee.toml and edgee.yaml)

Related Issues

• Allow Specifying a Config File Path on Execution #36