Add St. Helens, Knowsley, Sefton and Wirral and tags for Liverpool

lib/uk_planning_scraper/authorities.csv

@@ -58,7 +58,11 @@ Bristol,https://planningonline.bristol.gov.uk/online-applications/search.do?acti
 Cardiff,https://planningonline.cardiff.gov.uk/online-applications/search.do?action=advanced,wales
 Epsom and Ewell,http://eplanning.epsom-ewell.gov.uk/online-applications/search.do?action=advanced,surrey,england
 Leeds,https://publicaccess.leeds.gov.uk/online-applications/search.do?action=advanced,england
-Liverpool,http://northgate.liverpool.gov.uk/PlanningExplorer17/GeneralSearch.aspx,england
+Liverpool,http://northgate.liverpool.gov.uk/PlanningExplorer17/GeneralSearch.aspx,england,merseyside,liverpoolcityregion
+St. Helens,https://publicaccess.sthelens.gov.uk/online-applications/search.do?action=advanced,england,merseyside,liverpoolcityregion
+Knowsley,https://planapp.knowsley.gov.uk/online-applications/search.do?action=advanced,england,merseyside,liverpoolcityregion
+Sefton,https://pa.sefton.gov.uk/online-applications/search.do?action=advanced,england,merseyside,liverpoolcityregion
+Wirral,https://planning.wirral.gov.uk/online-applications/search.do?action=advanced,england,merseyside,liverpoolcityregion
 Sheffield,https://planningapps.sheffield.gov.uk/online-applications/search.do?action=advanced,england
 Wakefield,https://planning.wakefield.gov.uk/online-applications/search.do?action=advanced,england
 South Downs,https://planningpublicaccess.southdowns.gov.uk/online-applications/search.do?action=advanced,nationalparks,england