New J1939 protocol adapter

Value/Events buffered number and age constraints for "KeepAll" read mode in MQTT, NATS and OPCUA
Documentation updates

Author: arieleeuw

docs/adapters/j1939.md

@@ -74,7 +74,7 @@ Value must be in range 0..255 (0x..0xFF)
           "properties": {
             "SourceAddress": {
               "type": "string",
-              "description": "CANbus source adderss
+              "description": "CANbus source address"
             },
             "Channels": {
               "type": "object",