Update specs to be rubocop compliant

- Update rubocop config to include specs/**
- Update specs to comply with rubocop

Change-Id: I50734daada5c8fb3a40e8e9e02b0732843dc1d9b
Implements: blueprint rubocop-for-object-storage
Update libraries to be rubocop compliant

- Update rubocop config to include libraries/**
- Update libraries to comply with rubocop

Change-Id: I143944f77803da3525aefae54fe2ae3f6406d337
Implements: blueprint rubocop-for-object-storage