Introduce funnel operator i,e '|>' to allow for generator pipelines

[jamsamcam (Diogo Riviera)]

@dg-pb

Was rejected, but I am still hopeful it will be reconsidered once things fall into places. It is a bit too early to tell if this is the good addition I suppose. See:

Feels like the proposal in that form perhaps maybe would be accepted if it didn’t overload operators

Basically a more minimal
Implementation