Issue 117 Merge private CollectionCost into public CollectionCost module

[parangat94]

Ready for review.

[eberlea]

@parangat94, please review my questions, check the code, and check the validation data, and then send back to me for review. It doesn't look like there are any changes to the utility results so that's good but there are some enormous differences between the validation data and the model result for the DW cases.

[akey7]

@parangat94 Has there been any movement ahead on @eberlea comments? Once those changes are made and @eberlea approves, I will do my review.

[parangat94]

@eberlea @akey7 ready for review. I've made changes per your requests and re-ran the validation. Please see results below:

Important: Please note there is new expected validation data on the box. I made some minor tweaks to the expected collection cost breakdown (which were showing some minor discrepancies in expected value due to legacy bugs)

[eberlea]

I'm reviewing this now. I've flagged some additional comments that need to be addressed before merging. I'll let you know when I'm done reviewing and it's ready for you to make final changes before merging.

[eberlea]

I think this is close. Validation passes. :-) Please address my one remaining comment below before you merge.

[akey7]

Waiting for the hardcoded value of 137 to be addressed in the conversation on CollectionCost.py

[parangat94]

@akey7 merged develop into branch issue_108_integrate_DW, followed by merge of issue_108_integrate_DW into current branch (issue_117_integrate_DW_collection).

PR ready for final review.

[akey7]

Validation works. Looks good to me!