refactor(pubsub): Unify the send-API for PubSub binary vs JSON
refactor(pubsub): Unify the send-API for PubSub binary vs JSON

jpfr/open62541,open62541/open62541,open62541/open62541,JGrothoff/open62541,JGrothoff/open62541,jpfr/open62541,open62541/open62541,jpfr/open62541,jpfr/open62541,open62541/open62541,JGrothoff/open62541,JGrothoff/open62541