Add Openlayers map, WMS & WFS layers, popup and interaction. All WIP code. To refactor

webapp/.angular-cli.json

webapp/package-lock.json

webapp/package.json

...nts/dataset-detail/dataset-map/dataset-map.component.html

...nts/dataset-detail/dataset-map/dataset-map.component.scss

...nents/dataset-detail/dataset-map/dataset-map.component.ts

webapp/src/assets/leaflet.wms.js

webapp/src/tsconfig.app.json