Resolve "Change EA-based examples to include offspring-fraction"

src/evoal/plugins/de.evoal.core.ea/src/main/examples/genetic-programming/gp-example.ol

@@ -23,6 +23,7 @@ module example {
     'number-of-generations' := 1000;
     'size-of-population' := 100;
     'maximum-age' := 1000;
+    'offspring-fraction' := 0.6;
 
     'initialisation' := 'random-tree-population' {};
 

src/evoal/plugins/de.evoal.generator.main/src/main/examples/search-with-benchmark/search.ol

@@ -26,7 +26,8 @@ module search {
 		'number-of-generations' := 100;
 		'size-of-population' := 50;
 		'maximum-age' := 100;
-	
+	    'offspring-fraction' := 0.6;
+
 		'initialisation' := 'random-population' {};
 		
 		'comparator' := 'numeric-comparator' {};