Python bindings for the Rust unicode-segmentation and unicode-width crates,
providing Unicode text segmentation and width calculation according to Unicode
standards.

Features:
- Grapheme Cluster Segmentation: Split text into user-perceived characters
- Word Segmentation: Split text into words according to Unicode rules
- Sentence Segmentation: Split text into sentences
- Display Width Calculation: Get the display width of text (for
  terminal/monospace display)
- Gettext PO Wrapping: Wrap text for gettext PO files with proper handling of
  escape sequences and CJK characters