Release v1.0

Evaluate what plist needs to do to reach 1.0.

• 1.0.x: Look at the number of buffer copies and full reads we're doing for text and binary
  • Only XML needs a streaming buffer; binary and text now need to read the whole document and retain references to it.
• 1.1: Add ...WithOptions and allow format-specific version/coding selection (like: bplist 1.5, GNUStep with Base64 data)