Rjf/traversal abstractions clone issue

[robfitzgerald]

This PR refactors the energy model build process so that all objects in the energy TraversalModelService are wrapped in Arc references if they are large heap objects, so cloning is not expensive. it cleans up the build removing one layer of indirection along the way.

TraversalModelService (and builder) traits were defined in routee-compass but have been moved to routee-compass-core so that they are available from the routee-compass-powertrain crate. build methods now return a TraversalModelError on failure, since CompassConfigurationError is no longer in scope.

It's probably a good low-hanging fruit task to move the rest of the builder traits to the core crate too.

i attempted to update the doc reference from the routee-compass crate that references TraversalModelBuilder, but i'm worried it won't take, that we can't make cross-crate references like that. we may need to replace those builder links with a direct hyperlink to the routee-compass-core docs at docs.rs.

Closes #34.

[nreinicke]

This makes sense to me and I like moving the builder into the core since it needs to be implemented for any custom traversal model. Perhaps I can merge this into the ndr/phev branch if/when we feel like it's in a good place since there a going to be a couple of merge conflicts related to the changes on the speed grade energy model?

[robfitzgerald]

Perhaps I can merge this into the ndr/phev branch if/when we feel like it's in a good place since there a going to be a couple of merge conflicts related to the changes on the speed grade energy model?

sounds kinda like the same thing as merging this into main now though, right? either way the changes have to get merged into your branch.

[nreinicke]

Yeah good point, I'll just merge main into the ndr/phev branch