Feature Request: Automatic VCR filtering

[readeharris]

When using the vcr gem to mock HTTP responses, you need to add lines like this to make sure your secrets don't get into your cassette files:

VCR.configure do |c|
  # ...

  c.filter_sensitive_data('<GITHUB_APP_ID>') { ENV['GITHUB_APP_ID'] }
  c.filter_sensitive_data('<GITHUB_APP_SECRET>') { ENV['GITHUB_APP_SECRET'] }
end

It would be nice if secretive offered an integration that would automatically tell vcr to filter everything in secrets.yml.

I'll work on this when I have time.