Adds three new fields to the camera config (To be used in conjunction with the PR on the allsky repo)
extratext - The full path to a file containing the extra text to be displayed on the images. The file can contain multiple lines, each will be displayed.
extratextage - If the file above is not updated within this timeframe then the contents of the text file will not be added to the images, handy for when the process updating the text file crashes. To disable this check set the value to 0
textlineheight - Allows the line height of the text to be changed, saves people manually editing and recompiling capture.cpp
Adds three new fields to the camera config (To be used in conjunction with the PR on the allsky repo)