Small refactors in the Scaffolder:
* Getting rid of GenerationModelProvider and moving its logic mostly to
GenerationStrategy
* Minor changes in MuleConfigGenerator
* Fixed tests accordingly
-Minor refactors in some generation clases.
-Adding assertions to most tests inside ScaffolderTest
Merge branch 'master' into scaffolderRefactors
Merge pull request #25 from mulesoft/scaffolderRefactors

Some refactors in the Scaffolder