Update editors/calligraplan (project planner) to latest upstream

From the release notes on the KDE-releases mailing list:

Main changes:

• Allow to print a selectable time range.
• Fit printout to page height.
• Fit printout to a single page
• Print the chart on multiple pages.
• Uses a color palette suitable for printing on white paper
• Use the mouse or mouse weel to zoom the datetime scale.

The application is described at https://calligra.org/plan/

There are some larger plist changes here because documentation
is now much more extensive (and included with the app instead of
bundled somewhere else).

Reported by: portscout