[services] Backup - client base reactors - terminate on error

Summary:
Depends on D3610

We should be able to throw in the implemented methods so the connection is gracefully closed with a proper message

Test Plan: The same as in D3535

Reviewers: palys-swm, geekbrother

Reviewed By: palys-swm

Subscribers: ashoat, palys-swm, Adrian, atul, benschac, yayabosh

Differential Revision: https://phabricator.ashoat.com/D3626