Log Message:
unifont: update to 13.0.05.

ChangeLog:

* font/plane00/unifont-base.hex:
  - Raised dentistry symbols U+23C0..U+23CA up one row, as they
    were in Unifont 13.0.03, per recommendation of David Corbett
    (Savannah Bug 59541).
* font/plane00csur/plane00csur.hex:
  - U+EB60..U+EB9C (Braille Extended): added missing glyphs.
* font/plane01/plane01.hex:
  - David Corbett contributed adjusted glyphs for arrow symbols
    U+1D9A2..U+1D9A4 and U+1D9DF..U+1D9E1 (Savannah Bug 59629)..