ortbConverter: send max tmax

[bretg]

Type of issue

enhancement

Description

The ortbConverter lib sets the ORTB tmax value to s2sConfig.timeout. This is great, but we have a module that would like to know the actual client-side timeout -- the timeout passed to pbjs.requestBids.

Specifically the use case is timeout optimization. We're exploring a server-side module that would help the publisher optimize the timeout value, essentially ignoring tmax and experimenting with other, possibly more effective values. But we need to know the ceiling for how far these explorations should go.

We propose passing the client-side timeout value as ext.tmaxmax.