Remove duplicates in GET /arbitrary/hosted/resources response

src/main/java/org/qortal/api/resource/ArbitraryResource.java

@@ -400,7 +400,9 @@ public class ArbitraryResource {
 				arbitraryResourceInfo.name = transactionData.getName();
 				arbitraryResourceInfo.service = transactionData.getService();
 				arbitraryResourceInfo.identifier = transactionData.getIdentifier();
-				resources.add(arbitraryResourceInfo);
+				if (!resources.contains(arbitraryResourceInfo)) {
+					resources.add(arbitraryResourceInfo);
+				}
 			}
 
 			if (includeStatus != null && includeStatus == true) {

src/main/java/org/qortal/data/arbitrary/ArbitraryResourceInfo.java

@@ -4,6 +4,7 @@ import org.qortal.arbitrary.misc.Service;
 
 import javax.xml.bind.annotation.XmlAccessType;
 import javax.xml.bind.annotation.XmlAccessorType;
+import java.util.Objects;
 
 @XmlAccessorType(XmlAccessType.FIELD)
 public class ArbitraryResourceInfo {
@@ -16,4 +17,19 @@ public class ArbitraryResourceInfo {
 	public ArbitraryResourceInfo() {
 	}
 
+	@Override
+	public boolean equals(Object o) {
+		if (o == this)
+			return true;
+
+		if (!(o instanceof ArbitraryResourceInfo))
+			return false;
+
+		ArbitraryResourceInfo other = (ArbitraryResourceInfo) o;
+
+		return Objects.equals(this.name, other.name) &&
+				Objects.equals(this.service, other.service) &&
+				Objects.equals(this.identifier, other.identifier);
+	}
+
 }