make beef dumps opt-in via config

include/globals.h

@@ -89,6 +89,10 @@
 #define DEV_LOG_LENGTH_DISCREPANCY
 // If defined, log chunk generation events
 #define DEV_LOG_CHUNK_GENERATION
+// If defined, allows dumping world data by sending 0xBEEF (big-endian),
+// and uploading world data by sending 0xFEED, followed by the data buffer.
+// Doesn't implement authentication, hence disabled by default.
+// #define DEV_ENABLE_BEEF_DUMPS
 
 #define STATE_NONE 0
 #define STATE_STATUS 1