Add PGOODMonitor class

This class checks that PGOOD comes on in the amount of
time specified.  If it doesn't, it will create an error log.

Future commits will analyze the power sequencer chip for failures
in this case so a better callout can be done.

Change-Id: Ia3679e5a7d36103f908b70aa0301cd012b0e7b20
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
diff --git a/power-sequencer/Makefile.am b/power-sequencer/Makefile.am
index 2aed038..27fc0d0 100644
--- a/power-sequencer/Makefile.am
+++ b/power-sequencer/Makefile.am
@@ -6,7 +6,8 @@
 
 witherspoon_pseq_monitor_SOURCES = \
 	argument.cpp \
-	main.cpp
+	main.cpp \
+	pgood_monitor.cpp
 
 witherspoon_pseq_monitor_LDADD = \
 	$(top_builddir)/libpower.la \