feat(docs): Add Rust dependency graph generation, enable workspace indexing for Rust docs

[Mr-Leshiy]

Description

• Added Rust dependency graph generation
• enabled workspace indexing for Rust docs
• Added Rust module graph generation
• Extended current Rust example project with more than one crate
• Updated Rust guide

Related Issue(s)

Related to input-output-hk/catalyst-voices#148

Please confirm the following checks

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream module

[FelipeRosa]

LGTM