Add diagnostics query

[netsirius]

This pull request introduces several changes to enhance the functionality of the freenet-stdlib package, improve diagnostics capabilities, and refine error handling in versioning code. The most significant updates include upgrading the package version, restructuring diagnostics-related enums and structs, and improving error handling readability in versioning logic.

Diagnostics Enhancements:

• Introduced the NodeDiagnostics struct to provide detailed diagnostics, including contract states, system metrics, and connected peer information.
• Added the NodeDiagnosticsResponse struct to encapsulate diagnostic results and the NodeDiagnosticsConfig struct for configurable diagnostics collection.
• Implemented helper methods in NodeDiagnosticsConfig to create diagnostic configurations for debugging, basic status, and full diagnostics.

Versioning Improvements:

• Refactored error handling in DelegateCode and ContractCode implementations to improve readability and consistency when processing contract versions. [1] [2]

Package Update:

• Updated the freenet-stdlib package version from 0.1.9 to 0.1.10 in Cargo.toml.