Add MODE_OF_OPERATION definition to the workflow

[trevorb1]

To populate the mode of operation columns, we sometimes manually add in the values (ie. 1 or 2), sometimes we loop over a list (ie. mode = [1,2]), and there may be a couple other random ways we do it. Lets standardize this and have all files using the same definition to create the mode column in the same way

Originally posted by @Kiel-SFU in #102 (comment)