Visualising the flow

In order to Visualise the flow, we created a new stringer interface, that will show trees like

Adding A/B Test Node

v0.4.0

Adding A/B Test Node

Add Context and Headers Metadata

ResoleWithContext allow us to get back the context.
Headers on the tree allow us to add more metadata to the Tree

Improving perf

v0.2.0

Doc: Explain the string comparition

First release

Project was created, tested and stabilised.