HPCC-7899 "Report bug" button in eclwatch WU page

Added  ws_workunit "onWUReportBug" method to be used to create a
client zip file containing information about a problem they want to
report (a user can attach this file to a Jira ticket). This single ZIP
file will contain one or more files, including logfiles, archive file,
and a report file detailing information such as WUID, build, ESP IP,
Thor IP, and problem description.

Signed-off-by: William Whitehead <william.whitehead@lexisnexis.com>