feat(dan/engine): add more engine primitives and add template context

[sdbondi]

Description

• adds Component primitive and adds fields to Vault and Bucket
• adds engine() helper for internal use in macro code
• adds context() helper that provides some basic execution context
• adds template_types crate for common types for tari_engine and templates
• supports adding a component to the state store via OP_CREATE_COMPONENT, with updated test
• adds exists method to state store
• loads the component for the CallMethod instruction and passes it as an argument to WASM code
• implements component state updates

Motivation and Context

Incremental progress on state loading and persisting.

template_lib - library for wasm contracts. Needs to support wasm and non-wasm targets as well as no_std

How Has This Been Tested?

Rust unit / integration tests updated as needed.