Add tapChain

[dggluz]

Description

Similar to #12, but for functions that return Tasks where we are not interested in its resolving types but in managing it possibly rejection values or in waiting for that function to complete:

task
    .chain(tapChain(sendEmail))
    .chain(tapChain(sendSlackMessage))

[hrajchert]

I didn't have the need to do this yet, but just like tap, I'd suggest to provide it directly in to pipe. And probably change name

task.pipe(
  tapAndAwait(sendEmail)
)