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/debugcli/debugcli.c

@@ -23,6 +23,9 @@
  *
  * @endverbatim
  */
+
+#define MXS_MODULE_NAME "debugcli"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>