add friend entity

src/main/java/com/covas/Entity/FriendEntity.java

@@ -0,0 +1,20 @@
+package com.covas.Entity;
+
+import java.time.LocalDateTime;
+import java.util.Collection;
+
+import io.quarkus.mongodb.panache.PanacheMongoEntity;
+import io.quarkus.mongodb.panache.common.MongoEntity;
+
+@MongoEntity(collection="friend")
+public class FriendEntity extends PanacheMongoEntity {
+
+    public String owner;
+
+    public Collection<String> friends;
+
+
+    public LocalDateTime created_at;
+    public LocalDateTime updated_at;
+    public LocalDateTime deleted_at;
+}