GOS Type 4 is implementation

- startCount, endCount, idDelta, idRangeOffset and glyphIdArray arrays in format 4 generated and checked
- parsing code for cmap format 4 is added
- checking code for 4 arrays added
- regenerated Noto-Sans-KR-Thin base font
It'll not build, because we can not regenerate format 4 without format 12 segment information