[LyX/master] Support for the JLReq class, by Koji Yokota (#12657)

[Juergen Spitzmueller]

commit 83d281f81e86653739e450fe456d30e5982e00b2
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Wed Feb 8 11:19:11 2023 +0100

    Support for the JLReq class, by Koji Yokota (#12657)

 lib/Makefile.am                                    |    9 +
 .../Japanese_Article_%28JLReq_Class%29.lyx         | 3378 ++++++++++++++++++++
 lib/layouts/jlreq-article.layout                   |   22 +
 lib/layouts/jlreq-book.layout                      |   22 +
 lib/layouts/jlreq-common.inc                       |  310 ++
 lib/layouts/jlreq-report.layout                    |   22 +
 6 files changed, 3763 insertions(+), 0 deletions(-)