patch 8.2.0776: libvterm code lags behind the upstream version

Problem:    Libvterm code lags behind the upstream version.
Solution:   Include revision 719.
diff --git a/Filelist b/Filelist
index 7564879..be1b36e 100644
--- a/Filelist
+++ b/Filelist
@@ -305,6 +305,7 @@
 		src/libvterm/vterm.pc.in \
 		src/libvterm/doc/URLs \
 		src/libvterm/doc/seqs.txt \
+		src/libvterm/find-wide-chars.pl \
 		src/libvterm/include/vterm.h \
 		src/libvterm/include/vterm_keycodes.h \
 		src/libvterm/src/encoding.c \
@@ -312,6 +313,7 @@
 		src/libvterm/src/encoding/DECdrawing.tbl \
 		src/libvterm/src/encoding/uk.inc \
 		src/libvterm/src/encoding/uk.tbl \
+		src/libvterm/src/fullwidth.inc \
 		src/libvterm/src/keyboard.c \
 		src/libvterm/src/mouse.c \
 		src/libvterm/src/parser.c \