Enable debugging of source language of Wasm files

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@jlb6740, I suspect this issue isn't exclusive to the code in this repository, but it is related: when I'm running a program in a Wasm runtime, can we provide a way for ittapi_rs to map executed code back to both 1) its Wasm form and 2) its original source language (e.g., C, Rust, AssemblyScript)?

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Perhaps what is necessary is also a documented example in the repository of how to do this, ideally with the high-level API proposed in #15.