Feat/structured msg

[neithanmo]

This adds many changes:

• Improve parsing of Value types fixing some bugs when parsing really complex and nested clarity values.
• Add a const parameter to limit recursion either when parsing transactions(contract calls) or structured data.
• Move some types from common to their own files, like principal and contract principals.
• Add useful types to deal with clarity tuples, strings, and integers.
• Enhance some return types to align with current practices using nom in other apps.
• replace some from_u8 methods by the rust built-in TryFrom trait.
• Add a parser for structured_data and render it
• Add a flow to sign structured data.
• Add zemu tests to validate structured data parsing and signing.
• Update zxlib.
• Update snapshots
• Update app version.
• Other minor changes like Clippy and so.

closes #118

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