Ruby - Autoformatting from Rubocop

[ford-at-aws]

This pull request fixes all automated linting findings from Rubocop. It leaves roughly 50 violations that will be resolved in this story.

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By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[ajschmidt8]

This PR left merge conflict annotations in some files:

• aws-doc-sdk-examples/ruby/example_code/s3/object_get.rb

  Lines 33 to 41 in d8a741f

  	<<<<<<< HEAD
  	bucket_name = "amzn-s3-demo-bucket"
  	object_key = "my-object.txt"
  	target_path = "my-object-as-file.txt"
  	=======
  	bucket_name = 'doc-example-bucket'
  	object_key = 'my-object.txt'
  	target_path = 'my-object-as-file.txt'
  	>>>>>>> 999c6133e (fixes)

• aws-doc-sdk-examples/ruby/example_code/s3/object_copy.rb

  Lines 36 to 46 in d8a741f

  	<<<<<<< HEAD
  	source_bucket_name = "amzn-s3-demo-bucket1"
  	source_key = "my-source-file.txt"
  	target_bucket_name = "amzn-s3-demo-bucket2"
  	target_key = "my-target-file.txt"
  	=======
  	source_bucket_name = 'doc-example-bucket1'
  	source_key = 'my-source-file.txt'
  	target_bucket_name = 'doc-example-bucket2'
  	target_key = 'my-target-file.txt'
  	>>>>>>> 999c6133e (fixes)