* vbUnicode/vbFromUnicode considers optional third LCID argument.
* LCID is also used for other conversions.
* The encoding is decided based on the language defined in LCID,
or on program locale when LCID is omitted, using MS default
ACP mapping for languages.
* Unit testis for vbWide / vbNarrow are changed and enabled.
* Unit tests for vbKatakana / vbHiragana are changed and enabled.
* Unit test for vbFromUnicode / vbUnicode is changed to rely on
en-US locale used in testing, and is enabled.
Change-Id: Iabd4153db311cd02c3f3e7247f9fc71ad9f5f682
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/112539
Tested-by: Jenkins
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>