server: Added mechanism for returning results of APC calls.

Defined APC_VIRTUAL_ALLOC and APC_VIRTUAL_FREE requests.
diff --git a/server/request.h b/server/request.h
index 8cfeccd..5a7dcfc 100644
--- a/server/request.h
+++ b/server/request.h
@@ -129,6 +129,7 @@
 DECL_HANDLER(unload_dll);
 DECL_HANDLER(queue_apc);
 DECL_HANDLER(get_apc);
+DECL_HANDLER(get_apc_result);
 DECL_HANDLER(close_handle);
 DECL_HANDLER(set_handle_info);
 DECL_HANDLER(dup_handle);
@@ -348,6 +349,7 @@
     (req_handler)req_unload_dll,
     (req_handler)req_queue_apc,
     (req_handler)req_get_apc,
+    (req_handler)req_get_apc_result,
     (req_handler)req_close_handle,
     (req_handler)req_set_handle_info,
     (req_handler)req_dup_handle,