Added run_and_prove binary

[yuvalsw]

(and refactorred binaries to share code)

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This change is 

[shaharsamocha7]

Reviewed 13 of 13 files at r1, all commit messages.
Reviewable status: all files reviewed, 3 unresolved discussions (waiting on @yuvalsw)

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a discussion (no related file):
Why we need to create another crate and not create two binaries from the same one?

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stwo_cairo_prover/crates/vm_runner/src/main.rs line 24 at r1 (raw file):

    vm_args: VmArgs,
    #[structopt(long = "output_path")]
    output_path: PathBuf,

What is special about this attribute?

Code quote:

    #[structopt(long = "output_path")]
    output_path: PathBuf,

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stwo_cairo_prover/crates/vm_runner/src/main.rs line 34 at r1 (raw file):

    IO(#[from] std::io::Error),
    #[error("VM run failed: {0}")]
    Vm(#[from] VmError),

This means that now we will get Error::VM::IO
Is this the resulted behaviour? (should we test those things?)

Code quote:

Vm(#[from] VmError),