started
problem 9 solved, although there's several inefficiencies that I think I need to deal with.

implemented a fibonacci Sequencer class (I thought I would need it for problem 9, turns out I don't)
update PrimeNumbers class to use a static constructor instead of a manual one.
had to update several projects that used PrimeNumbers class, and remove the called to the old initializer.
solved problem 9
Merge branch 'problem9'

Conflicts:
	PrimeNumbers/PrimeNumbers/PrimeNumbers.cs