Add a MessageResponse class for mixed-type content

src/main/java/wtf/beatrice/hidekobot/objects/MessageResponse.java

@@ -0,0 +1,28 @@
+package wtf.beatrice.hidekobot.objects;
+
+import net.dv8tion.jda.api.entities.MessageEmbed;
+import org.jetbrains.annotations.Nullable;
+
+public class MessageResponse
+{
+    private final String content;
+    private final MessageEmbed embed;
+
+    public MessageResponse(String content, MessageEmbed embed)
+    {
+        this.content = content;
+        this.embed = embed;
+    }
+
+    @Nullable
+    public String getContent()
+    {
+        return content;
+    }
+
+    @Nullable
+    public MessageEmbed getEmbed()
+    {
+        return embed;
+    }
+}