ISO-2022-JP-2 should support ISO-8859-1(ESC.A) and ISO-8859-7(ESC.F)

[Takehiko NOZAKI]

our iconv support for ISO-2022-JP-2 lacks 96 charset.

see RFC 1554

                              96 character sets
      reg#  character set      ESC sequence                designated to
      ------------------------------------------------------------------
      100   ISO8859-1          ESC 2/14 4/1     ESC . A    G2
      126   ISO8859-7(Greek)   ESC 2/14 4/6     ESC . F    G2

[Takehiko NOZAKI]

BUGFIX: Issue #77 -- ISO-2022-JP-2 should support ISO-8859-1(ESC.A) and ISO-8859-7(ESC.F).

→ <<cset d426d4db3fb7>>