Add miden-package crate with Package type to represent a compiled Miden program/library.

[greenhat]

This PR is stacked on #1554 and should be merged after it

TODO:

• Finish/polish the naming and implementation;
• Switch the compiler to this implementation and use the Package in LinkLibrary;
• Loading Package in the VM;
• Impl Arbitrary for the Package (and all used types including MastForest);
• Tests for roundtrip serialization/deserialization;
• Document the binary format and the packaging in the README.md;
• Enable ignored tests;

Describe your changes

This PR adds miden-package crate with Package type ported from the compiler's ad-hoc implementation to represent a compiled
Miden program/library.
The reasons for the new crate are explained in 0xPolygonMiden/compiler#346
The compiler's PR that uses miden-package from this PR is 0xPolygonMiden/compiler#349

Checklist before requesting a review

• Repo forked and branch created from next according to naming convention.
• Commit messages and codestyle follow conventions.
• Relevant issues are linked in the PR description.
• Tests added for new functionality.
• Documentation/comments updated according to changes.