patch 9.1.1391: Vim does not have a vertical tabpanel

Problem:  Vim does not have a tabpanel
Solution: include the tabpanel feature
          (Naruhiko Nishino, thinca)

closes: #17263

Co-authored-by: thinca <thinca@gmail.com>
Signed-off-by: Naruhiko Nishino <naru123456789@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/Make_mvc.mak b/src/Make_mvc.mak
index d6dbd2b..08016d4 100644
--- a/src/Make_mvc.mak
+++ b/src/Make_mvc.mak
@@ -779,6 +779,7 @@
 	$(OUTDIR)\spellsuggest.obj \
 	$(OUTDIR)\strings.obj \
 	$(OUTDIR)\syntax.obj \
+	$(OUTDIR)\tabpanel.obj \
 	$(OUTDIR)\tag.obj \
 	$(OUTDIR)\term.obj \
 	$(OUTDIR)\testing.obj \
@@ -1778,6 +1779,8 @@
 
 $(OUTDIR)/syntax.obj:	$(OUTDIR) syntax.c  $(INCL)
 
+$(OUTDIR)/tabpanel.obj:	$(OUTDIR) tabpanel.c  $(INCL)
+
 $(OUTDIR)/tag.obj:	$(OUTDIR) tag.c  $(INCL)
 
 $(OUTDIR)/term.obj:	$(OUTDIR) term.c  $(INCL)
@@ -2001,6 +2004,7 @@
 	proto/spellsuggest.pro \
 	proto/strings.pro \
 	proto/syntax.pro \
+	proto/tabpanel.pro \
 	proto/tag.pro \
 	proto/term.pro \
 	proto/testing.pro \