added iff compression and decoding message

[chillaq]

Ruby SDK

What did you accomplish?

How to test new changes?

Extra Notes

[sanzmauro]

I pull your changes and i am getting the following error:

➜  ruby-client git:(iff-update-splitworker) bundle exec rspec

An error occurred while loading ./spec/sse/workers/splits_worker_spec.rb. - Did you mean?
                    rspec ./spec/sse/workers/segments_worker_spec.rb

Failure/Error: require 'byebug'

You are missing to add the development dependency in .gemspec