New folder structure

[kubk]

Depends on #6

packages/
    css/
        reset.ts
    data-provider/
        data-provider.ts
        hydra-data-provider.ts
        hydra.ts
        admin.ts
        admin-api-client.ts // type
    integrations/
        create-react-app/
            assert-valid-build-target.ts
        final-form
            handle-form-submit.ts
    intl/
        translator.ts
        react-intl-translator.ts
        react-intl-factory.ts
        translations.json
    jwt/
        jwt.ts
        impersonate-service.ts
        impersonate-service-factory.ts
        token-storage.ts
        local-token-storage.ts
    network-status/
        network-status-notificator.ts
        network-status-service.ts
    notificator/
        notificator.ts
        react-toastify-notificator.ts
    core/
        store/
            admin-login-store.ts
        filters/
            parse-filters.tsx
            query-serializer.ts
        view/
            admin.tsx
            admin-authenticated-route.tsx
    view-bootstrap/
        layout/
            admin-list.tsx
            admin-layout.tsx
            admin-logout.tsx
        auth/
            admin-login.tsx
            admin-impersonate.tsx
        grid/
            admin-grid-no-result.tsx
            admin-grid.tsx
            admin-search-input.tsx
            admin-pagination.tsx
        ui/
            admin-checkbox.tsx
            admin-input.tsx
            admin-tooltip.tsx
            admin-confirm-modal.tsx
            admin-radio-switcher.tsx

form-store-factory.ts
list-store-factory.ts