Handle send failures as non fatal and return detailed results in json output

Fixes #348

src/main/java/org/asamk/signal/json/JsonRecipientAddress.java

@@ -0,0 +1,12 @@
+package org.asamk.signal.json;
+
+import org.asamk.signal.manager.storage.recipients.RecipientAddress;
+
+import java.util.UUID;
+
+public record JsonRecipientAddress(String uuid, String number) {
+
+    public static JsonRecipientAddress from(RecipientAddress address) {
+        return new JsonRecipientAddress(address.uuid().map(UUID::toString).orElse(null), address.number().orElse(null));
+    }
+}