v1.2.0

This release changes the algorithm to avoid adding spacing pairs if glyphs will collide by computing glyph bounding boxes.

A few notable changes:

• The language is now optional. The ink bounding box can discover the used language conventions of the fonts.
• The Config class is changed accordingly.

This change does not change the generated tables for Noto CJK. It caused a few changes for Meiryo, but all changes were verified.