Added the class that will handle the income type.
ref #8
Added the classes in the factory that will be necessary to save the income types.
ref #8
Added the bootstrapper method that will add a default values.
ref #8
Added the controller for the income types.
ref #8
Added the view for the income types.
Finished the implementation.
ref #8
Finished the tests to the income type model and controller class.
close #8
Merge branch 'feature/8' into develop