Custom icons for district, block, cluster and schools. Concerns #22
Merge branch 'dev' of github.com:klpdotorg/dise_dashboard into map
Merge branch 'dev' of github.com:klpdotorg/dise_dashboard into map
Load district points, added a layer group to organise layers and remove default layers when search triggers
Load district, block, cluster and school data based on zoom levels. Related #7