feat(rust): support for alias import in codegen

[salujajaskeerat]

Closes #

This Pr handles support for aliasing imports in rust language. CTO file using aliasing should be correctly exported to rust format.

Author Checklist

• Ensure you provide a DCO sign-off for your commits using the --signoff option of git commit.
• Vital features and changes captured in unit and/or integration tests
• Commits messages follow AP format
• Extend the documentation, if necessary
• Merging to main from fork:branchname