Migrate compatibility to new object-style format

This MR adapts the systems compatibility info to the new object style format. (See: https://foundryvtt.com/article/module-development/) Through this, it resolves the module level warning that is shown in the foundry setup screen:

The system "dsa-41" is using the old flat core compatibility fields which are deprecated in favor of the new "compatibility" object

I kept the existing compatibility information (min 10, max 11), and added the newest stable build for Foundry v11 as the tested version.