patch 8.2.0803: libvterm code lags behind the upstream version

Problem:    Libvterm code lags behind the upstream version.
Solution:   Include revisions 764 - 767
diff --git a/src/Makefile b/src/Makefile
index ad8f241..9b50eca 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -3562,7 +3562,7 @@
 objects/vterm_state.o: libvterm/src/state.c $(TERM_DEPS)
 	$(CCCTERM) -o $@ libvterm/src/state.c
 
-objects/vterm_unicode.o: libvterm/src/unicode.c $(TERM_DEPS)
+objects/vterm_unicode.o: libvterm/src/unicode.c $(TERM_DEPS) libvterm/src/fullwidth.inc
 	$(CCCTERM) -o $@ libvterm/src/unicode.c
 
 objects/vterm_vterm.o: libvterm/src/vterm.c $(TERM_DEPS)