Added widget dropdown for date facets blocks
CW-712 added year dropdown on non search page expsoed fitler
CW-712 exported directives year facet widget and view
CW-893 Added Topics to Seminars Overview page
Fix label for year dropdown date directive
Fix exported facet seminat topics
Merge pull request #366 from EU-OSHA/CW-712_search_year_directive

Cw 712 search year directive