v1.2.3

Added

• archive: Support semantic methods for subscribing to unarchive events (onExtract), Issue #47.
• archive: Added Gunzipper to decompress gzip files. Only supported on runtimes that supported
  DecompressionStream('gzip') for now. Issue #48.
• io: Added a getData() method to ByteBuffer to retrieve a copy of the bytes that have been written.

Changed

• archive: Unrarrer throws an explicit error when encountering RAR5 files.
• io: ByteBuffer.insertXXX() now throws an error if trying to write past the end of the buffer.