Implement ‘history tab’ to show current day, 10 day, and 30 day history of column values

* Add a tab (called History) that shows the different view of data that can be used in either mode (normal, or single direction mode).  Single direction mode will be configured into the scanner and read measurement at one angle.  So no flux will calculate and probably will show zero in Today's Flux plot.
* For the plot in the new tab, perhaps make the number of days to display configurable.