[ul] Add robustness in byte availability to PDU reading#610
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- update pdu_roundtrip target to compile in v0.8 - add helper fuzz.sh
- add more checks for enough bytes available - check bytes available earlier - remove println in read_pdu, replace it with a debug-level log line
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Fixes an issue encountered while reviving an existing fuzz target in ul/fuzz. Some fuzz test cases were crashing when trying to advance or get bytes in the buffer which were not available.
Summary
dicom-ulv0.8println!in read_pdu, replace it with a debug-level log line