rename headers to match style

Moving headers from ".h" to ".hpp"

Reworked the header inclusion a bit so that host-ipmid is treated as a
library, and local headers aren't.

renamed apphandler.h => apphandler.hpp
renamed chassishandler.h => chassishandler.hpp
renamed globalhandler.h => globalhandler.hpp
renamed sensorhandler.h => sensorhandler.hpp
renamed storageaddsel.h => storageaddsel.hpp
renamed storagehandler.h => storagehandler.hpp
renamed systemintfcmds.h => systemintfcmds.hpp

Change-Id: I9d4ce3dd57e2e996800f9020a10cc10cdf2c3914
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/systemintfcmds.cpp b/systemintfcmds.cpp
index c39a7af..af646d1 100644
--- a/systemintfcmds.cpp
+++ b/systemintfcmds.cpp
@@ -1,15 +1,15 @@
 #include "config.h"
 
-#include "systemintfcmds.h"
+#include "systemintfcmds.hpp"
 
 #include "host-cmd-manager.hpp"
 #include "host-interface.hpp"
-#include "host-ipmid/ipmid-host-cmd.hpp"
 
+#include <host-ipmid/ipmid-api.h>
 #include <mapper.h>
 #include <stdio.h>
 
-#include "host-ipmid/ipmid-api.h"
+#include <host-ipmid/ipmid-host-cmd.hpp>
 
 void register_netfn_app_functions() __attribute__((constructor));