[persistence] added persistence configuration in engine conf file.
#max_map_size=50000
#max_btree_size=50000
+#
+# Persistence configuration
+#
# use persistence (true or false, default: false)
use_persistence=false
+
+# data file path
+#data_path=<data_path>
+#
+# logs file path
+#logs_path=<logs_path>
+#
+# asynchronous logging
+#async_logging=true
