Expose typing information through the AST API

[ggiraldez]

This PR adds a get_type() method to AST node types to expose the typing information obtained during the binding passes through a public Type interface. Similar to the AST nodes and the definitions, this Type is a façade to the underlying binder::Type and the SemanticAnalysis object, which allows navigation to nested types and related definitions.

[changeset-bot]

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Latest commit: 55f76c6

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[teofr]

LGTM