Make non-hourly dt error model specific

[jaredthomas68]

Make non-hourly dt model specific

H2I will throw an error regardless of the model if a non-hourly time step is used.

Proposed solution

Make the error model-specific using a dictionary with allowed time-step duration range to check against and base the error on.

Alternatives considered

• individual error statements for each model (difficult to maintain)
• require all models to work on the same time-step ranges (too hard to make manageable chunks of work)

Additional context

[jaredthomas68]

Closed by #653