Handle FD exchanges in either order like TRLog used to do

[ny4i]

At some point, the FD exchange was changed Toastmasters International WYSIWYG. This messed up the parsing such that if you put something in the wrong order, bad data can get logged. You can also create new mults by mistyping one.

I suspect this change was done as ops at FD may not get the section abbreviation right and you do not want to slow them down but that could be handled with a QuickDisplay such as if they type an S and hit enter, the possible sections that start with an S appear. That would be helpful.

[ny4i]

This code was partially implemented in that some code was present, but it was put in the wrong place. I fixed this so it works now.

[ny4i]

Release Note: When operating ARRL Field Day, the exchange needed to be entered in the proper order (class and section). The program will now accept section and class as well. (2A WCF and WCF 2A).