add ij.jar for screening DSS (in dev environment)

screening/build.gradle

@@ -14,6 +14,7 @@ dependencies {
             project(':datastore_server'),
             'openhms:jackcess:+',
             'reveregroup:gwt-image-loader:+',
+            'imagej:ij:+',
             'bioformats:bioformats:5.9.2'
 
     testCompile project(path: ':datastore_server', configuration: 'tests')