Added inital skeleton of config file.
Added some code related to config file handling.
Some tidying.
Function to read config file now working.
Functions to read lists of reference values and populate map based on Clover or (Clover,Crystal) vectors working.
Test values into config file.
Default Config.txt read if no custom config specified or if custom config fails.
Dummy values for all four efficiency references added to Config.txt.
Those values now read in by ReadConfigFile() and stored in maps.
Some tidying and formating of output.
All four efficiency references now added on plots and written to output file.