Models return useful exceptions

[jawache]

What: Models return a useful set of exceptions
Why: So the user can figure out what they are doing wrong wiring the IMPL and fix it.
SoW:

• First go through the spec documentation and the current set of models and propose a set of exceptions.
• Review the exceptions with the core team and broader IEF project team.
• Implement the new exceptions in the models.
• Catch the exceptions in the CLI and log appropriately

[jawache]

NOTE: @gnanakeethan very important, read the checkboxes above. This task is asking you to first document the exceptions, and then review with the team before you implement them.

[gnanakeethan]

• Invalid observations
• Missing Observation Parameter
• Invalid Observation Parameter - type error / value error
• Invalid Observatioin Parameter - range error
• Missing Configuration Parameter
• Invalid Configuration parameter
• Incomplete configuration
• Unsupported Resource Type
• Unsupported Resolution Mechanism (interpolation -> spline / linear only)
• External API Error

[jawache]

Feedback From Call

• To help users figure out what's wrongs and where to look in the IMPL file it's related to.
• Error message can contain the hint.
• YAML path should point to a part of the YAML where the user can look.

[jmcook1186]

Sprint planning updates 20/11/23

• Apply to both if and if-unofficial models
• 0.5 day estimate to each assigned dev
• expect PR 21/11/23