Add IService interface and BaseService implementation and tests
Implement bike share services according to IService interface and BaseService template
Remove old services implementation
Spell checking and formatting
Refactor tests to use testify package
Add test to biking service using a mock http server
removes use of Init() in favor of a constructor, renames IService interface, hides baseService
stops exporting bikeshare types to force usage of constructor
removes unnecessary Init() in the base service
refactors Bicing parsing to be more predictable
Merge pull request #1 from ctaintor/refactor_bike_share_services

Refactor bike share services
Add contribution section to the README and instructions on how to run tests
Merge pull request #4 from omer-g/refactor_bike_share_servies

Refactor bike share servies