Midterm Code to Question Map
============================
For most of the code in this solution, the mapping is obvious, e.g., a project name like MT3Q7.
However, there are some questions with solutions drawn for code handouts.  That's what this map
explains.

MT1Q4 - MT1Q4 project in this solution
MT1Q5 - Query class and TestClass in this solution, revised from Instructor's solution CppNoSqlDb.
MT1Q7 - MT1Q7 project
MT2Q3 - Query class and TestClass in this solution
MT2Q4 - MT2Q4 project
MT3Q1 - CodeUtilities project
MT3Q3 - MT3Q3 project
MT3Q7 - MT3Q7 project
MT4Q1 - DbCore class and TestClass in this solution
MT4Q4 - GraphWalkDemo project, revised from GraphWalkDemo in Project2HelpS18 folder
MT4Q5 - MT4Q5 project
