ref delploy data aka target parser III/V

[blaggacao]

This PR is built cumulatively on top of two other PRs.

For confidence in review, only the third commit is meant to be considered.

• Refactor data to settings (specificity)
• Refactor data structures into thier own module
• Refactor implement from_str trait for Target data

Renaming DeployFlake to target better represents the semantic and making a target string from cli parse()able perfects that angle of understanding.

Associating methods on the structs they belong to is a pattern that will also help (in future PRs) to reduce the need for usage of Copy.