[Feature] Add pich accent

[furdzik]

• Add pich accent functionality
  https://github.com/olety/japanese-pitch-accent-resources
  https://accent.u-biq.org/sa.html
• Add pich accent data

Examples:

• https://www.japandict.com/%E9%8A%80%E8%A1%8C%E5%93%A1