Enforce forecast and history duration divisibility by time resolution

[AUdaltsova]

Pull Request

Description

• Added validation of config parameters in Wind, PV, NWP to check that forecast_minutes % time_resolution_minutes == 0 and history_minutes % time_resolution_minutes == 0 (if this doesn't hold it can cause inconsistent shape in samples). Might be useful to add for other data sources as well, but I wasn't sure if there's caveats I wouldn't be aware of
• Added tests to check validation behaves as expected
• Fixed validator -> field_validator version issue along the way. Might be pushing the scope a bit, but felt weird to leave as was using new syntax anyway (see pydantic: Upgrade validator to field_validator #318 )

Fixes #318 and 234 in PVNet

How Has This Been Tested?

Added tests in test_config

• Yes

Checklist:

• My code follows OCF's coding style guidelines
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have checked my code and corrected any misspellings

[peterdudfield]

thanks for doing this and the tests too