CA-140596: Implement retry module

This module holds the retry logic, when a failure is ignored and should
be retried.

Signed-off-by: Mate Lakat <mate.lakat@citrix.com>
CA-140596: Wire-in retry module

Namespaces are used both at the refcounter and the lock module. This
change will use the same retry mechanism for both putposes.

Signed-off-by: Mate Lakat <mate.lakat@citrix.com>