Add support for the export API to search tickets#787

PierreBtz wants to merge 2 commits intocloudbees-oss:mastercloudbees-oss/zendesk-java-client:masterfrom

PierreBtz:pbeitz/search-with-exportPierreBtz/zendesk-java-client:pbeitz/search-with-exportCopy head branch name to clipboard