Supports multiplying by number of participants in meal model

[madsnedergaard]

Issue

https://github.com/tmrowco/bloom/issues/338

Description

Updates Meal model to support multiplying the emission by number of meals/participants.

Changes

• Wrote tests to cover existing model
• Added new functionality
• Bumped model version

Preview

⚠️ FYI/NOTE

I am not sure about best approach here with regards to name - I have here reused participants from transportation, but would it make more sense to have something like "numberOfMeals" instead? 🤔

I'm unsure if it's too weird that participants is multiplying emissions here, but dividing emissions in the transportation model.

[skovhus]

I think numberOfMeals (mealCount?) is a better name. Participants is ambiguous, e.g. multiple people could share one meal.

[madsnedergaard]

I think numberOfMeals (mealCount?) is a better name. Participants is ambiguous, e.g. multiple people could share one meal.

Thanks, then "participants" stays transportation-specific and I will introduce a new numberOfMeals attribute :)