This outputs a numeric code, an integer value, for all configured
wells at all times and enables more visual inspection of how the
wells' active controls change over time--either in response to
explicit target modes in the input or as a result of limits becoming
active.
Note that due to the fall-back option of selecting the input value
if no dynamic value is available, we must ensure that the test code
does not specify well types (producer/injector) that conflict with
the keywords used in the backing data set. Update the relevant
tests accordingly.
