NGIS updates * WGS worklist returns HTML if no requests * WGS worklist & data extraction scripts use flow results summary not diagnosis to set NGIS test code * update service name from GeNEQ to YNEGLH

Preparation for Deb9 migration: adapt tests to run on new deployment (not Deb9 specific) new test file for required file & db resources disable 'Dummy' driver for CAP::Authentication - caused fatal errors when session did not match username in dev env

move NGIS data setup into an external module, shared between HILIS4 & FileUploader-D2 ngis_requests.t files

Add Sheffield to GeNEQ locations for ngis_requests.t; remove unnecessary hidden field from .tt; get data structure key from yaml

New function to auto-load external ref for NGIS requests