Expand PERFORMANCE_MEASUREMENT output to break down the full rule timing into transformation, operator and full.

Add a "Transformation completed in N usec." debug line to compliment the operator timing.

apache2/re.h

@@ -143,6 +143,8 @@ struct msre_rule {
     msre_rule               *chain_starter;
     #if defined(PERFORMANCE_MEASUREMENT)
     unsigned int             execution_time;
+    unsigned int             trans_time;
+    unsigned int             op_time;
     #endif
 
     /* Compiled Lua script. */