The test consists of two projects:
- StringProcessor - the main project.
- StringProcessor.Tests - the unit test project (using xUnit).
-  Write code in the main project to ensure that the four unit tests pass. 
 Note: for the purposes of this test, a word includes punctuation. "I'm" is a single word and "that." is five characters long (including the full-stop).
-  Add a project and code to the solution to fulfil the following requirement: GIVEN a text string 
 WHEN it is sent to a HTTP API endpoint
 THEN JSON representing the populated StringStatsModel is returnedEnsure that you can test this via your preferred method (Postman, integration test or webpage, etc) 
-  (Optional / for bonus points) Write a fifth unit test which tests very large input to the StringStatsProcessor.Run(string) method.