NO-JIRA: [C++ binding] Add error_loop to fwd.hpp
NO-JIRA: [C++ binding] Add error_loop to fwd.hpp

ChugR/qpid-proton,ssorj/qpid-proton,gemmellr/qpid-proton,ssorj/qpid-proton,ChugR/qpid-proton,ssorj/qpid-proton,ChugR/qpid-proton,apache/qpid-proton,kgiusti/qpid-proton,apache/qpid-proton,apache/qpid-proton,alanconway/qpid-proton,apache/qpid-proton,kgiusti/qpid-proton,ChugR/qpid-proton,astitcher/qpid-proton,ssorj/qpid-proton,kgiusti/qpid-proton,gemmellr/qpid-proton,apache/qpid-proton,alanconway/qpid-proton,kgiusti/qpid-proton,gemmellr/qpid-proton,astitcher/qpid-proton,apache/qpid-proton,ssorj/qpid-proton,kgiusti/qpid-proton,astitcher/qpid-proton,alanconway/qpid-proton,alanconway/qpid-proton,gemmellr/qpid-proton,gemmellr/qpid-proton,kgiusti/qpid-proton,alanconway/qpid-proton,ChugR/qpid-proton,ChugR/qpid-proton,gemmellr/qpid-proton,astitcher/qpid-proton,ssorj/qpid-proton,astitcher/qpid-proton,astitcher/qpid-proton,alanconway/qpid-proton