Data loading

[MaksymilianDemitraszek]

We need to add structs and utilities to load necessary data, it includes:

• profiler trace data (we should use profiler's library)
• sierra code
• sierra debug info - functions and lines annotations

It should be simillar to what profiler does: https://github.com/software-mansion/cairo-profiler/blob/1910c74220e203d625e02e890adce70b3992380e/crates/cairo-profiler/src/main.rs#L59
But we also need to load statements -> lines from annotations (profiler loads only functions).

We should add an example data and write a test loading it, based on this PR: software-mansion/scarb#1506

The PR should not process the data in any way, just load it and test the loading utilities + provide the test data.