imageFile parameter can't handle spaces in filename

[MatthewWhiting]

If the directory pointing to the file has spaces in it, then there will be problems reading in the name. The reading will stop at the first space.

The parameter reading task needs to be made more robust against this sort of occurrence. Perhaps have a different method of reading for the filename compared to other string parameters.

[MatthewWhiting]

Done in [733] & [744]. Have a new function that reads a filename, that will keep any spaces that exist within that filename. Tested on bilby and works fine.

Moved the string manipulation functions to a new file (out of param.cc) for transparency.

Closing this ticket.