feat: integrate serde for serialization and deserialization

[jeroenvervaeke]

Changes

Main change

Added serde feature, which conditionally makes all models returned by the library Serialize and Deserialize.

Flyby

Added common derives to models:

• Clone, Debug, PartialEq, Eq

Enhanced the State enum with Display and FromStr implementations for better usability.

JIRA: [CLOUDP-366099] [atlas-local-lib] Add serialize feature

[coveralls]

Pull Request Test Coverage Report for Build 20265513480

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
• To avoid this issue with future PRs, see these Recommended CI Configurations.
• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 106 of 117 (90.6%) changed or added relevant lines in 3 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.3%) to 99.51%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
src/models/state.rs	46	57	80.7%

Totals
Change from base Build 20227736399:	-0.3%
Covered Lines:	3450
Relevant Lines:	3467

---

💛 - Coveralls

[blva]

non-blocking comments