improve project_details & add feature_list, project_mapping, project_members

src/App.vue

src/assets/js/formset_handlers.js

src/components/project/project_mapping_basemap.vue

src/main.js

src/router/index.js

src/store/index.js

src/views/Index.vue

src/views/feature/Feature_list.vue

src/views/project/Project_detail.vue

src/views/project/Project_mapping.vue

src/views/project/Project_members.vue