Source Code Tracking #26
Description
Currently there's a spot in the lu_dog model for a single source. In the extruder code when we are doing an import we setup a new context that tracks the source code, so errors in the extruder will be correct.
The issue is in the interpreter and the VM. We only have access to the outermost source code, and I don't think we ever read if from the model. Since we are forced to build a single lu_dog for all source, we need to have multiple source code sources in the model, and then in the code we need to reference what's in the model for errors.