Add runner to verify multi-receiver support of habitat API.

ttnhabbridge/src/test/java/nl/sikken/bertrik/hab/habitat/RunMultiReceiverTest.java

@@ -0,0 +1,33 @@
+package nl.sikken.bertrik.hab.habitat;
+
+import java.time.Duration;
+import java.time.Instant;
+import java.util.Arrays;
+
+import nl.sikken.bertrik.hab.Sentence;
+
+public final class RunMultiReceiverTest {
+    
+    public static void main(String[] args) {
+        RunMultiReceiverTest test = new RunMultiReceiverTest();
+        test.run();
+    }
+
+    private void run() {
+        String url = "http://habitat.habhub.org";
+        Duration timeout = Duration.ofSeconds(30);
+        HabitatUploader uploader = new HabitatUploader(HabitatUploader.newRestClient(url, timeout));
+        uploader.start();
+        try {
+            Instant now = Instant.now();
+            Sentence sentence = new Sentence("TTNTEST", 1, now);
+            HabReceiver receiver1 = new HabReceiver("BERTRIK1", new Location(52.022887, 4.69, 0.0));
+            HabReceiver receiver2 = new HabReceiver("BERTRIK2", new Location(52.022887, 4.70, 0.0));
+            
+            uploader.schedulePayloadTelemetryUpload(sentence.format(), Arrays.asList(receiver1, receiver2), now);
+        } finally {
+            uploader.stop();
+        }
+    }
+
+}