Add Logging To Code Generators (WIP)

[tux-rampage]

This will add logging capabilities to the code generators by implementing Psr\Log\LoggerAwareInterface. This will complete the stated TODO in the code.

Users will then be able to provide any logger that implements Psr\Log\LoggerInterface to the code generator classes:

$generator->setLogger($logger);

• [x] Are you creating a new feature?
  • [x] Why is the new feature needed? What purpose does it serve?
  • [x] How will users use the new feature?
  • [x] Base your feature on the develop branch, and submit against that branch.
  • [x] Add only one feature per pull request; split multiple features over multiple pull requests
  • [x] Add tests for the new feature.
  • [x] Add documentation for the new feature.
  • [x] Add a CHANGELOG.md entry for the new feature.

[Ocramius]

@tux-rampage this was opened and merged by yourself without any review approving or rejecting it. Please do not ever do that again.

[tux-rampage]

@Ocramius thanks for the info. I guess I was too eager then. I'll roll back the merge asap and reopen the pull for Review. Sorry about that.

[Ocramius]

@tux-rampage no need to roll back, just please ask for help if you feel like nobody watched over your work.