imm32: Implement the ImmSetConversionStatus.

[ByeongSik Jeon]

Tested with "MS IME 2002(imekr61.ime)", "MS IME
2003(imekr70.ime)", and "Saenaru(saenaru.ime, Korean Free IME)".

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 dlls/imm32/imm.c |   29 ++++++++++++++++++++---------
 1 files changed, 20 insertions(+), 9 deletions(-)