Add a method to add common vuln status filters to report configs

This is a convenience method for creating reports that should behave the
same as reports created in the web UI.

lib/nexpose/report.rb

@@ -207,6 +207,16 @@ def add_filter(type, id)
       filters << Filter.new(type, id)
     end
 
+    # Add the common vulnerability status filters as used by the UI for most
+    #  report templates (defaults). Recommended for reports that do not require
+    # 'not vlunerable' results to be included. The following statuses are added:
+    # vulnerable-exploted, vulnerable-version, and potential.
+    def add_common_vuln_status_filters
+      ['vulnerable-exploited', 'vulnerable-version', 'potential'].each do |vuln_status|
+        filters << Filter.new('vuln-status', vuln_status)
+      end
+    end
+
     def to_xml
       xml = %(<AdhocReportConfig format="#{@format}" template-id="#{@template_id}")
       xml << %( owner="#{@owner}") if @owner