Support heapless Vec
#56
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Adds support for heapless
Vecbehind a non-default feature flag.My use case involves encoding a variable but bounded sequence of bytes, which aligns well with the
heapless::Vectype. This approach also avoids heap allocation during serialization & deserialization.Heapless has a serde feature, but it's implementing using
visit_seqrather thanvisit_bytesorvisit_byte_buf, so it suffers from the issue this crate is designed to address. I wasn't sure, but decided to try implementing this here rather than inheapless.I noticed #4 mentioned a similar requirement.
I'm happy to refine this if needed. Let me know if there are any concerns about the approach or the implementation.