[REVIEW] fdo#45543 fix RTF import of ms932-encoded characters

[Miklos Vajna]

Hi,

There were a number of problems with the RTF import of stateful
encodings (i.e. where we can't process the characters one by one) - see
commits:

http://cgit.freedesktop.org/libreoffice/core/commit/?id=d7baacd81bbcfaa35b7fbf9981fa3fa7c9fb1cb4
http://cgit.freedesktop.org/libreoffice/core/commit/?id=0915f1b3d77afa694a2ca692aec307846827da99
http://cgit.freedesktop.org/libreoffice/core/commit/?id=00859026749e005759ce4e7115b746b064cd902b

I'm attaching a backport of these patches for -3-5: the first commit
fixes the real problem, the two later amends are correcting two issues
with the original fix.

Thanks,

Miklos