[Feature Request]: nice api for ArchiveExtractCallback/ISequentialOutStream

[RScherzer]

Feature description

Would be great if there would be an easy, clean interface in 4.x for adding a callback which is able to work on the currently decompressed block of data, so you can e.g. calculate the sha1 hash value of a file while it is being decompressed blockwise to memory. In 7z sdk theory this is an archive Extract call in test mode with ArchiveExtractCallback + ISequentialOutStream specified which inits the hash calculation, doing the hash update during the streams write calls and finalizing the hash when the extractcallback does its SetOperationResult.

Additional context

No response

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