[RFE] consumable library for integration with other provisioning agents about azure-init HOT 5 OPEN

This sounds great. A few comments:

1. We should produce a library which has all the core functionality and the main application that consumes it so that anyone can just use the whole agent as-is and other agents who are interested only in the functionality can consume the library.
2. We should think about making some of the functionality configurable. As an example: mounting the ISO to retrieve ovf file requires enabling UDF driver in the image, which might not be desirable for some users, especially if he/she does not have a need to provision the VM with password through Azure control plane. By making it configurable, the user can minimally customize the functionality of the agent/binary depending on his/her need

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I have been looking into this issue.

For separate structure of a common library and a binary that depends on the lib, one approach would be to introduce workspace.
So we can move all libs (distro, goalstate, imds, etc.) to a subdirectory, keeping only src/main.rs in the current form, to combine bin and lib in a top-level Cargo.toml.
ue-rs already has a similar workspace structure.

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Created a WIP PR #39.

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Published v0.1.1 of libazureinit and azure-init.
The 2nd one, The library is built and tested in CI, versioned releases are published regularly is done.

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