[Feature Request][Go SDK]: Add fileio MatchFiles, MatchAll and ReadMatches transforms

[johannaojeling]

What would you like to happen?

The Java and Python SDKs have the transforms:

• MatchFiles
• MatchAll
• ReadMatches

which enable emitting elements of type ReadableFile, from which a file descriptor and file metadata such as path and size can be obtained.

I would like to have similar transforms in the Go SDK with support for uncompressed and gzip files to start with.

Issue Priority

Priority: 2 (default / most feature requests should be filed as P2)

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[johannaojeling]

.take-issue