move types.hpp to ipmid/types.hpp for export

types.hpp is required by utility.hpp, which is exported, so it needs to
be exported as well. This moves it to the include/libipmid directory,
changes the Makefile to export it, and changes all the files that
include it so it can be found in the right place.

Change-Id: I30ec365446e4de466c266ec4faa327478460ec05
Signed-off-by: Vernon Mauery <vernon.mauery@linux.intel.com>
diff --git a/selutility.cpp b/selutility.cpp
index b85bc40..9edc1b8 100644
--- a/selutility.cpp
+++ b/selutility.cpp
@@ -2,11 +2,10 @@
 
 #include "selutility.hpp"
 
-#include "types.hpp"
-
 #include <ipmid/api.h>
 
 #include <chrono>
+#include <ipmid/types.hpp>
 #include <ipmid/utils.hpp>
 #include <phosphor-logging/elog-errors.hpp>
 #include <vector>