Add error handling if there is no template defined in the project

[kflemin]

this will create obscure errors especially for mixed use buildings...
add a warning that template is not defined, or default it to ashrae. (lookup_building_type is the function to update)

[laurenklun]

@kflemin I was going to add this issue to the new board but I don't have access to edit.

You should be able to select "9/30/20 SDK Release" in the Projects header on the right sidebar of this page. It then usually goes into triage on that board I think and you just have to move it into one of the columns

[vtnate]

@kflemin I think the solution is to replace this raise: https://github.com/urbanopt/urbanopt-example-geojson-project/blob/os39/example_project/mappers/Baseline.rb#L745. However, this later section may also need to be adjusted in that case.

Should we go so far as to change the geojson file, or do it all within memory? Does doing it in memory hide our actions, or does it not matter since the geojson file will always take precedence?