src: add missing headers

Signed-off-by: Patrick Venture <venture@google.com>
Change-Id: I6043ef792c2ce0a8e7584a73f83ca365ec61794d
diff --git a/src/FanMain.cpp b/src/FanMain.cpp
index a1868e2..fdd0295 100644
--- a/src/FanMain.cpp
+++ b/src/FanMain.cpp
@@ -19,15 +19,25 @@
 #include "Utils.hpp"
 #include "VariantVisitors.hpp"
 
+#include <array>
 #include <boost/algorithm/string/predicate.hpp>
 #include <boost/algorithm/string/replace.hpp>
+#include <boost/container/flat_map.hpp>
 #include <boost/container/flat_set.hpp>
 #include <boost/lexical_cast.hpp>
 #include <filesystem>
 #include <fstream>
+#include <functional>
+#include <memory>
+#include <optional>
 #include <regex>
 #include <sdbusplus/asio/connection.hpp>
 #include <sdbusplus/asio/object_server.hpp>
+#include <sdbusplus/bus/match.hpp>
+#include <string>
+#include <utility>
+#include <variant>
+#include <vector>
 
 static constexpr bool DEBUG = false;