feat: implement parseHintReference

[lana-shanghai]

Description

TODO add more details

See Go reference

[dhruvkelawala]

Please assign this to me

[tcoratger]

@lana-shanghai @dhruvkelawala This is already done here no? https://github.com/keep-starknet-strange/ziggy-starkdust/blob/main/src/parser/deserialize_utils.zig

[dhruvkelawala]

Ohh good. I didn't invest much time on it anyways

[github-actions]

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[canva254]

May I try my hand at this?