Support for CRC-64/NVME

[normj]

Amazon S3 recently launched new data integrity checks when uploading and download objects. https://docs.aws.amazon.com/AmazonS3/latest/userguide/checking-object-integrity.html. For context I'm a maintainer of the AWS .NET SDK.

It supports a collection of different hashing algorithms but the default is CRC-64/NVME which the System.IO.Hashing package does not support. The default means if an object was uploaded without a checksum, using an older SDK, S3 automatically generates a CRC-64/NVME checksum at the service level. Objects can also get a CRC-64/NVME checksum if they use another language that does support CRC-64/NVME like Go. This puts .NET at a disadvantage because users that are downloading with .NET objects that have a CRC-64/NVME checksum have the data integrity check skipped.

Curious what the .NET team's appetite is for adding CRC-64/NVME support in System.IO.Hashing. It has a CRC64 implementation for ECMA-182 today. Depending how this GitHub issue API request is handled that could solve the S3 need. #78063