Move files around into modules

capacity-planner/NetworkTopology.py

capacity-planner/capacityreport.py

capacity_planner/__init__.py

capacity_planner/alembic.ini

capacity_planner/alembic/env.py

capacity_planner/alembic/script.py.mako

capacity_planner/capacityreport.py

capacity_planner/services/__init__.py

capacity_planner/services/kentik.py

capacity_planner/utils/__init__.py

capacity_planner/utils/topology.py

capacity_planner/whatifscenarios.py

tox.ini