Issue #1313 recharge from imod5 cap data

[JoerivanEngelen]

Fixes #1313

Description

Construct an rch-package from iMOD5 data in the CAP package, loaded with the open_projectfile_data function. Package is
used to couple MODFLOW6 to MetaSWAP models. Active cells will have a recharge rate of 0.0.

At the moment, MetaSWAP can only be coupled to the first layer, as this is also the case for primod. iMOD Coupler these days supports coupling to other layers as well, but primod doesn't. Picking this up for iMOD Python and primod is worthy a separate story.

In detail:

• Add Recharge.from_imod5_cap_data class method, to construct an empty Recharge package with 0.0 rate.
• Minor refactor: Put GridData helper functions to msw/utilities/imod5_converter.py, so that they can be reused.

Checklist

• Links to correct issue
• Update changelog, if changes affect users
• PR title starts with Issue #nr, e.g. Issue #737
• Unit tests were added
• If feature added: Added/extended example

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[Manangka]

I would reconsider the place you put you converter code. The Recharge package now needs to now about the imod5 model. What would happen if we add another converter e.g. flopy? Then mf6 module also needs to know about that.

I would recommend moving all the converter code to a separate module. And in that module the code then knows about the imod5 data/packages and the mf6 data/packages

[JoerivanEngelen]

I agree, but it would be too large of a task to fix in this PR. I created a separate issue for this: #1319