0.3.0

What's Changed

• refactor: remove needless set_init by @ethe in #70
• feat: impl S3Writer for append by @KKould in #69
• refactor: change read semantic to read exact at, write semantic to se… by @ethe in #71
• Chore/s3 append mode by @KKould in #76
• fix: ordered put multipart in s3 by @ethe in #77
• feat: add buffered writer by @ethe in #79
• bump fusio to 0.3.0 & basic docs by @ethe in #81

Full Changelog: 0.2.1...0.3.0