Add follower and following views

src/components/status/status.vue

src/components/timeline/timeline.js

src/components/timeline/timeline.vue

src/components/user_card/user_card.js

src/components/user_card/user_card.vue

src/components/user_card_content/user_card_content.vue

src/components/user_panel/user_panel.vue

src/components/user_profile/user_profile.js

src/components/user_profile/user_profile.vue

src/modules/statuses.js

src/services/api/api.service.js

.../backend_interactor_service/backend_interactor_service.js