[LyX/master] Move language-specific examples in their own category

[Juergen Spitzmueller]

commit 93872e6fca479fde85b76cbfb6d5c059f7576035
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Fri Feb 10 13:10:15 2023 +0100

    Move language-specific examples in their own category
    
    Also, give some files a more transparent name

 lib/Makefile.am                                    |   22 +-
 .../Localization_Test_%28for_Developers%29.lyx     |  460 +++
 lib/examples/Localization_Test.lyx                 |  460 ---
 .../Multilingual_Typesetting_with_CJKutf8.lyx      |  444 +++
 .../Multilingual_Typesetting_with_platex.lyx       |  312 ++
 .../ja/Multilingual_Typesetting_with_CJKutf8.lyx   |  444 ---
 .../ja/Multilingual_Typesetting_with_platex.lyx    |  312 --
 .../Writing_Korean_with_CJK-ko.lyx                 | 3789 ++++++++++++++++++++
 lib/examples/ko/cjk-ko-doc.lyx                     | 3789 --------------------
 9 files changed, 5022 insertions(+), 5010 deletions(-)