Provide both manual and calculated event load in API

We thankfully can override the calculated load of a planned event via the API by PUT’ing a new value for icu_training_load (or of course manually in the GUI). On future GET requests, the overriden load is returned, just as it should be.

It would be great if the API, on subsequent calls, returned both the manual icu_training_load (as now) and the originally calculated value (or probably better yet the value that would be calculated right now, which could be different if zones or other settings were changed).

This value is what would be practical for people that do their own load calulations to have in the API - maybe a new attribute icu_training_load_calc or something like along those lines.

You get the original fields from these values