Create applet to calculate morale and effects

[kingjon3377]

I have a spreadsheet for calculating morale, and that makes it easier to use data I already use that spreadsheet to calculate (e.g. food consumption and surplus), but I'd like to have an applet (in the query app, I presume) here as well:

• so that players can see what effect something in a strategy might have on morale, and
• so that other applets can use a fortress's or "nation's" morale in other calculations