Deprecating utils modules and classes

The following util modules and classes have been deprecated at the documentation level since 0.10.0.

This pull requests adds deprecation warnings and removes the associated rspec tests.

```
$ tree calabash-cucumber/lib/calabash-cucumber/utils/
calabash-cucumber/lib/calabash-cucumber/utils/
├── < snip >
├── plist_buddy.rb
├── simulator_accessibility.rb
└── xctools.rb
```