Add attempt to create an sbt task to setup a new problem
Add solutions for problems 6 to 16
Change template format
Add mechanism to add problem file and check what is solved
Change test to look at what is solved rather that what has a solution
Add simple template processor
Solve problem 6
Solve problem 7
Solve problem 8
Solve problem 9
Solve problem 10
Solve problem 11
Solve problem 12