include: add missing headers

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I6b26a1bea2aae173b57dbd8affa0ba4991b1c9bb
diff --git a/include/ExitAirTempSensor.hpp b/include/ExitAirTempSensor.hpp
index 2142923..33ecb04 100644
--- a/include/ExitAirTempSensor.hpp
+++ b/include/ExitAirTempSensor.hpp
@@ -4,6 +4,9 @@
 #include <boost/container/flat_map.hpp>
 #include <chrono>
 #include <limits>
+#include <memory>
+#include <sdbusplus/bus/match.hpp>
+#include <string>
 #include <vector>
 
 struct ExitAirTempSensor;