patch 8.1.1684: profiling functionality is spread out

Problem:    Profiling functionality is spread out.
Solution:   Put profiling functionality in profiling.c. (Yegappan Lakshmanan,
            closes #4666)
diff --git a/src/Make_cyg_ming.mak b/src/Make_cyg_ming.mak
index d0769c3..b689df8 100644
--- a/src/Make_cyg_ming.mak
+++ b/src/Make_cyg_ming.mak
@@ -752,6 +752,7 @@
 	$(OUTDIR)/pathdef.o \
 	$(OUTDIR)/popupmnu.o \
 	$(OUTDIR)/popupwin.o \
+	$(OUTDIR)/profiler.o \
 	$(OUTDIR)/quickfix.o \
 	$(OUTDIR)/regexp.o \
 	$(OUTDIR)/screen.o \