CNC error messages with kernelv

The kernelv DLL can read out and display error messages output by the CNC. There are 2 options for this:

1. Read out fully formatted error message as string. The error message is returned in the same format as entered in the error message log and in the form of a string. The kernelv_get_error() function can be used for this.
2. Internal storage of the error message and request for parts of the error message for further processing and display in a user interface. The remaining functions described in this section are used for this purpose.