Add definitions of MXS_MODULE_NAME to all modules

All modules now declare a name for the module. This is name is added as a
prefix to all messages logged by a module. The prefix should help
determine which part of the system logs a message.

server/modules/routing/binlogrouter/test/testbinlog.c

@@ -21,6 +21,9 @@
  *
  * @endverbatim
  */
+
+#include "../blr.h"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -30,7 +33,6 @@
 #include <maxscale/router.h>
 #include <maxscale/atomic.h>
 #include <maxscale/spinlock.h>
-#include "../blr.h"
 #include <maxscale/dcb.h>
 #include <maxscale/spinlock.h>
 #include <maxscale/housekeeper.h>