Add string headers to allow building on latest gcc

src/logid/Configuration.cpp

@@ -5,6 +5,7 @@
 #include <libevdev/libevdev.h>
 #include <algorithm>
 #include <cstring>
+#include <string>
 #include <hidpp20/IHiresScroll.h>
 
 #include "Configuration.h"
@@ -514,4 +515,4 @@ DeviceConfig::~DeviceConfig()
 {
     for(auto it : this->actions)
         delete(it.second);
-}
+}