Add support for Mazak CNCs without MTConnect

[tukusejssirs]

Add support Mazak machines with MS Windows-based controllers without MTConnect:

• use case: when we don’t have agent running on a particular machine (either because MTConnect option is not bought by the customer or because the machine is quite old and not MTConnect-enabled);
• we need to monitor the light indicator (green: in production; yellow: not in production; red: in alarm state) and based on the lit data, calculate the (approximate) availability and productivity;
• we need to monitor Alarm.txt file for changes and process them:
  • in that file, there is a single line per alarm appended whenever an alarm is raised (from the file itself, we don’t know when an alarm is cleared though);
• we could process LBD files in order to get some other data (like rapid override, feedrate override values, currently loaded program name, pieces produced, etc):
  • note, however, that in my experience, the LBD files are written somewhat irregularly (albeit their is a record every ten seconds);
  • we need to check the LBD file structure for Win 10 controllers are a few bytes longer (again).