chore: setting 0.5 as the initial reputation value

Author: AllanCapistrano

src/main/java/reputation/node/models/Node.java

@@ -84,7 +84,7 @@ public class Node implements NodeTypeService, ILedgerSubscriber {
   private boolean useCredibility;
   private boolean useLatestCredibility;
   private boolean useReputation;
-  private double reputationValue = 0.0;
+  private double reputationValue = 0.5;
   private NodeCredibility nodeCredibility;
   private CsvWriterService csvWriter;
   private String credibilityHeader;

src/main/java/reputation/node/reputation/Reputation.java

@@ -33,6 +33,6 @@ public Double calculate(
       .stream()
       .mapToDouble(et -> ((Evaluation) et).getServiceEvaluation())
       .average()
-      .orElse(0.0);
+      .orElse(0.5);
   }
 }

src/main/java/reputation/node/reputation/ReputationUsingKMeans.java

@@ -59,7 +59,7 @@ public Double calculate(
     boolean useLatestCredibility,
     boolean useCredibility
   ) {
-    double reputation = 0.0;
+    double reputation = 0.5;
 
     List<SourceCredibility> nodesCredibilityWithSource =
       this.nodeCredibility.getNodesEvaluatorsCredibility(