presence: Add any of redundancy policy

Add a bitwise logical or redundancy policy implementation
(fan is present if any sensor indicates as such).

Change-Id: I1d161478a4a6fe9d5690a385703e41c6fff9c81c
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/presence/Makefile.am b/presence/Makefile.am
index e144858..b51563d 100644
--- a/presence/Makefile.am
+++ b/presence/Makefile.am
@@ -5,6 +5,7 @@
 	phosphor-fan-presence-tach
 
 phosphor_fan_presence_tach_SOURCES = \
+	anyof.cpp \
 	fallback.cpp \
 	fan.cpp \
 	gpio.cpp \