oc-mail: Store request properties

Save them in extra properties from folder container.

This is required because the client once a request is accepted
or denied sets these two properties and save the message again.
As we cannot modify an IMAP message, we use this utility.

See [MS-OXSHARE] Section 3.1.4.3 for details.

OpenChange/MAPIStoreSharingMessage.h

@@ -23,9 +23,9 @@
 #ifndef MAPISTORESHARINGMESSAGE_H
 #define MAPISTORESHARINGMESSAGE_H
 
+#import "MAPIStoreMailMessage.h"
 #import "MAPIStoreObjectProxy.h"
 
-
 @interface MAPIStoreSharingMessage : MAPIStoreObjectProxy
 {
   struct mapistore_connection_info *connInfo;
@@ -33,7 +33,8 @@
 }
 
 - (id) initWithMailHeaders: (NSDictionary *) mailHeaders
-         andConnectionInfo: (struct mapistore_connection_info *) newConnInfo;
+         andConnectionInfo: (struct mapistore_connection_info *) newConnInfo
+               fromMessage: (MAPIStoreMailMessage *) msg;
 
 /* getters */
 - (int) getPidLidSharingCapabilities: (void **) data
@@ -89,6 +90,10 @@
 - (int) getPidNameContentClass: (void **) data
                       inMemCtx: (TALLOC_CTX *) memCtx;
 
+/* Save */
+- (void) saveWithMessage: (MAPIStoreMailMessage *) msg
+           andSOGoObject: (SOGoMailObject *) sogoObject;
+
 @end
 
 #endif /* MAPISTORECALENDARWRAPPER_H */