Enhancement: Create separate distance determination and edge detection pipeline

[j4lando]

To independently test each part of our algorithm we need to separate the distance determination and edge detection algorithms. This will require making new implementations of the PipelineExecutor in src/commanline/execution/executors.hpp. These implementation should be called TestEdgePipelineExecutor and TestDistancePipelineExecutor respectively and should only be compiled if a new compile flag called TEST=true. To accomplish this use a similar pattern as decimal. These new pipeline should use similar flags as there respective parts.

Depends on issue #57

[nguy8tri]

Josh, I'm not entirely sure why this would need to be done here, we could achieve this by unit testing instead of adding infrastructure to FOUND?

[refact0r]

Josh, I'm not entirely sure why this would need to be done here, we could achieve this by unit testing instead of adding infrastructure to FOUND?

@j4lando