Add glyph-images of HNG-KAR.

Add glyph-images of HNG-KAR.
(U+7F52): Separate UU+7F52.
(U+7F52-itaiji-001): New character; use `<-denotational' for U+7F52.
(U+7F6A): Separate UU+7F6A.
(UU+7F6A): Move HNG-KHM0108-0 and HNG-KHI0523-0 to U+7F6A-itaiji-001.
(U+7F6A-itaiji-001): New character to integrate HNG-KAR1170-0,
HNG-KHM0108-0 and HNG-KHI0523-0; use `<-denotational' for U+7F6A.
(U+7F70): Separate UU+7F70.
(HNG-KAR1169-0): New character; use `<-denotational' for U+7F70.
(U+7F77): Separate UU+7F77; apply new conventions for glyph
granularity.
(HNG-KAR0257-0): New character; use `<-denotational' for U+7F77.