patch 9.0.0977: it is not easy to see what client-server commands are doing

Problem:    It is not easy to see what client-server commands are doing.
Solution:   Add channel log messages if ch_log() is available.  Move the
            channel logging and make it available with the +eval feature.
diff --git a/src/Make_mvc.mak b/src/Make_mvc.mak
index 639ae2f..501446e 100644
--- a/src/Make_mvc.mak
+++ b/src/Make_mvc.mak
@@ -685,6 +685,7 @@
 	$(OUTDIR)\json.obj \
 	$(OUTDIR)\list.obj \
 	$(OUTDIR)\locale.obj \
+	$(OUTDIR)\logfile.obj \
 	$(OUTDIR)\main.obj \
 	$(OUTDIR)\map.obj \
 	$(OUTDIR)\mark.obj \
@@ -1586,6 +1587,8 @@
 
 $(OUTDIR)/locale.obj:	$(OUTDIR) locale.c  $(INCL)
 
+$(OUTDIR)/logfile.obj:	$(OUTDIR) logfile.c  $(INCL)
+
 $(OUTDIR)/main.obj:	$(OUTDIR) main.c  $(INCL) $(CUI_INCL)
 
 $(OUTDIR)/map.obj:	$(OUTDIR) map.c  $(INCL)
@@ -1862,6 +1865,7 @@
 	proto/json.pro \
 	proto/list.pro \
 	proto/locale.pro \
+	proto/logfile.pro \
 	proto/main.pro \
 	proto/map.pro \
 	proto/mark.pro \