always surround our own includes with <>

followup to aed0a639
"tdf#42949 remove unnecessary includes using iwyu"

Change-Id: I6cd17a24d1a8f2d718f42333a6e1866d77a5553f

include/store/store.h

@@ -22,8 +22,8 @@
 
 #include <store/storedllapi.h>
 #include <store/types.h>
-#include "rtl/ustring.h"
-#include "sal/types.h"
+#include <rtl/ustring.h>
+#include <sal/types.h>
 
 #ifdef __cplusplus
 extern "C" {

include/store/store.hxx

@@ -24,7 +24,7 @@
 #include <sal/types.h>
 #include <stddef.h>
 #include <rtl/ustring.hxx>
-#include "types.h"
+#include <types.h>
 
 namespace store
 {