Check whether data folder exists and log it

src/main/kotlin/net/deliciousreya/minecraftportal/MinecraftPortalPlugin.kt

@@ -37,8 +37,11 @@ class MinecraftPortalPlugin() : JavaPlugin(), Listener
             if (dataFolder.exists()) {
                 throw IllegalStateException("Data folder already exists but not as a directory")
             } else {
+                logger.info("Setting up in newly created data directory $dataFolder")
                 dataFolder.mkdirs()
             }
+        } else {
+            logger.info("Setting up in data directory $dataFolder")
         }
         portals.loadFromAndAutoSaveTo(server, dataFolder.resolve("portal_data.binproto"), dataFolder.resolve("portal_data.binproto.bak"))
         portals.validateWorldOnStartup(logger)