Enforce autoplacement of wells in the data loaded with .open_projectfile_data

[JoerivanEngelen]

Our Well package doesn't support a layer specified by the user. iMOD5 does support this. To fix this, we might require something like a LayeredWell object, congruent with the HFB package.

Requirements

• If necessary, force autoplacement of wells, for example by setting layer number to 0 in the dictionary loaded with open_projectfile_data
• Log warning that we are not supporting placing wells to a specified layer
• If filter_top and filter_bottom are not present in the data, throw error upon calling from_imod5_data.

[JoerivanEngelen]

Autoplacement was already enforced, warning messages and error have been added in #1104