Introduce databind writer#567

piotrooo merged 3 commits into4.xasterisk-java/asterisk-java:4.xfrom

566-add-a-writer-to-save-from-an-object-to-asterisk-formatasterisk-java/asterisk-java:566-add-a-writer-to-save-from-an-object-to-asterisk-formatCopy head branch name to clipboard