Cleanup: introduced ServiceMeasurementUUID.

Part of #1352.

src/main/java/de/dennisguse/opentracks/sensors/ServiceMeasurementUUID.java

@@ -0,0 +1,47 @@
+package de.dennisguse.opentracks.sensors;
+
+import androidx.annotation.NonNull;
+
+import java.util.Objects;
+import java.util.UUID;
+
+public class ServiceMeasurementUUID {
+
+    private final UUID serviceUUID;
+    private final UUID measurementUUID;
+
+    public ServiceMeasurementUUID(UUID serviceUUID, UUID measurementUUID) {
+        this.serviceUUID = serviceUUID;
+        this.measurementUUID = measurementUUID;
+    }
+
+    public UUID getServiceUUID() {
+        return serviceUUID;
+    }
+
+    public UUID getMeasurementUUID() {
+        return measurementUUID;
+    }
+
+    @NonNull
+    @Override
+    public String toString() {
+        return "ServiceMeasurementUUID{" +
+                "serviceUUID=" + serviceUUID +
+                ", measurementUUID=" + measurementUUID +
+                '}';
+    }
+
+    @Override
+    public boolean equals(Object o) {
+        if (this == o) return true;
+        if (o == null || getClass() != o.getClass()) return false;
+        ServiceMeasurementUUID that = (ServiceMeasurementUUID) o;
+        return Objects.equals(serviceUUID, that.serviceUUID) && Objects.equals(measurementUUID, that.measurementUUID);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(serviceUUID, measurementUUID);
+    }
+}