[LyX/master] Add Russian translation of Beamer manual, by Henry Chern

[Juergen Spitzmueller]

commit b2109b9d39ed0b6e40a282bcd0f314a5c20d2fd5
Author: Yuriy Skalko <yuriy.skalko at gmail.com>
Date:   Mon Sep 7 09:55:14 2020 +0300

    Add Russian translation of Beamer manual, by Henry Chern

 lib/Makefile.am                          |    5 +
 lib/examples/ru/Presentations/Beamer.lyx | 4365 ++++++++++++++++++++++++++++++
 2 files changed, 4370 insertions(+), 0 deletions(-)