Shows the number of simulated annealead CloudletToVmMappingSolution created

- Introduces CloudletToVmMappingSimulatedAnnealing.solutions static attribute
  to be incremented at every solution created.
- Changes CloudletToVmMappingSolution constructors to accept an id param
  to identify the number of solution being created
- Update DatacenterBrokerHeuristicExample to show the number of created solutions

Signed-off-by: Manoel Campos <[email protected]>

Author: manoelcampos

src/main/java/org/cloudsimplus/examples/brokers/DatacenterBrokerHeuristicExample.java

@@ -168,6 +168,7 @@ private void print(final DatacenterBrokerHeuristic broker0) {
 		        "Heuristic solution for mapping cloudlets to Vm's         ",
 		        heuristic.getBestSolutionSoFar(), false);
 
+        System.out.printf("\tTotal number of solutions created: %d%n", CloudletToVmMappingSimulatedAnnealing.getSolutions());
 		System.out.printf(
 		    "\tThe heuristic solution cost represents %.2f%% of the round robin mapping cost used by the DatacenterBrokerSimple%n",
 		    heuristic.getBestSolutionSoFar().getCost()*100.0/roundRobinMappingCost);