Lukáš Hrázký authored Oct 12, 2018 and Frediano Ziglio committed Oct 16, 2018

Wraps the deserialization of the received messages in an InboundMessages
class. The class is created with the deserialized header and the raw
data of the message. A template function get_payload() returns the
struct of the concrete message. The function is specialized for each
incoming message.

While this leaves the responsibility to call the get_payload() function
with the message according to the type in the header to the caller, the
solution preserves the efficiency of the original implementation without
introducing too much complexity around the separation of the code.

Signed-off-by: Lukáš Hrázký <lhrazky@redhat.com>
Acked-by: Frediano Ziglio <fziglio@redhat.com>