FORGE-2316: Added equals() and hashCode() to StackBuilder

projects/api/src/main/java/org/jboss/forge/addon/projects/stacks/StackBuilder.java

@@ -64,4 +64,41 @@ public Set<Class<? extends ProjectFacet>> getBundledFacets()
    {
       return facets;
    }
+
+   @Override
+   public int hashCode()
+   {
+      final int prime = 31;
+      int result = 1;
+      result = prime * result + ((facets == null) ? 0 : facets.hashCode());
+      result = prime * result + ((name == null) ? 0 : name.hashCode());
+      return result;
+   }
+
+   @Override
+   public boolean equals(Object obj)
+   {
+      if (this == obj)
+         return true;
+      if (obj == null)
+         return false;
+      if (getClass() != obj.getClass())
+         return false;
+      StackBuilder other = (StackBuilder) obj;
+      if (facets == null)
+      {
+         if (other.facets != null)
+            return false;
+      }
+      else if (!facets.equals(other.facets))
+         return false;
+      if (name == null)
+      {
+         if (other.name != null)
+            return false;
+      }
+      else if (!name.equals(other.name))
+         return false;
+      return true;
+   }
 }