Add exit air temp sensor

Exit air temperature is calculated based on system
power and CFM. CFM sensor will be broken out into own
sensor in follow on commit.

Change-Id: I01b68c4de9a17e5a8d623bbbd7e7089f8f9d15d5
Signed-off-by: James Feist <james.feist@linux.intel.com>
diff --git a/include/Utils.hpp b/include/Utils.hpp
index 8d9eac5..fd4dde2 100644
--- a/include/Utils.hpp
+++ b/include/Utils.hpp
@@ -12,8 +12,9 @@
 const std::regex illegalDbusRegex("[^A-Za-z0-9_]");
 
 using BasicVariantType =
-    sdbusplus::message::variant<std::string, int64_t, uint64_t, double, int32_t,
-                                uint32_t, int16_t, uint16_t, uint8_t, bool>;
+    sdbusplus::message::variant<std::vector<std::string>, std::string, int64_t,
+                                uint64_t, double, int32_t, uint32_t, int16_t,
+                                uint16_t, uint8_t, bool>;
 
 using ManagedObjectType = boost::container::flat_map<
     sdbusplus::message::object_path,