* iterative and formula fibonacci methods
Added two ways to calculate the fibonacci sequence: (1) iterative (2) formula.
I've also added a timer decorator so someone can see the difference in computation time between these two methods.
Added two unittests using the slash framework.
* Update test_fibonacci.py
* remove inline comments per Contributing Guidelines
* Update sol5.py
* Create placeholder.py
* Update and rename maths/test_fibonacci.py to maths/tests/test_fibonacci.py
* Delete placeholder.py
* Create __init__.py
* Update test_fibonacci.py
* Rename Maths/lucasSeries.py to maths/lucasSeries.py
* Update and rename Project Euler/Problem 01/sol5.py to project_euler/problem_01/sol6.py
