Feature/api scores

* test case skeletons for POST requests 
* Remove old functionality from POST
* test case skeletons for POST requests 
* Remove old functionality from POST
* Updated to changes in develop branch
* Functional test for GET with a specific week  
* Used the correct parameter to test against
* Kept NFL ID to the type stored in the datastore   
* Implement GET with & without week parameter   
* Debugging information is not a testable objective 
* Added more POST request tests 
* Updated test case to access array properly
* Added type-casting to Model   
* Implemented POST functionality