Error parsing Lottie JSON with precomposition

[sebasjham]

bodymovin-rs is unable to parse any animations with precompositions.

Tested using several animations from https://googlefonts.github.io/noto-emoji-animation/. One animation with a precomp looks like this: (using https://lottiefiles.github.io/lottie-docs/playground/json_editor/):

Error:

Unable to parse lottie JSON: ParseFailed(Error("data did not match any variant of untagged enum Asset", line: 1, column: 80831))

I believe it is referring to this data structure not able to be deserialized

#[derive(Debug, Deserialize)]
#[serde(untagged)]
pub enum Asset {
    Image(Image),
    PreComp(PreComp),
}

[nuzzles]

This issue can be closed as it will be solved via #13

[DJMcNab]

We should add this as a linked issue in #13, rather than pre-emptively closing it

I don't expect #13 to take much longer, but it's best to keep the correct state of the issue on main tracked.

I've added it as a linked issue.