Adding cutting and total-machining time information

To populate setup sheets with the cutting time and total-machining time of toolpaths, NC programs and projects (in HH:MM:SS), use the parameters nCuttingTime and nTotalTime in conjunction with the new function time_to_string in the relevant .html template.

Note: "M" instructs the time_to_string function to display the retrieved value in minutes. Use "S" or "H" to display the values in seconds or hours respectively.