Update index exports

[raveclassic]

• index.ts should reexport as namespaces: export * as remoteData from './remote-data instead of unnamed exports.
• index.ts should reexport remote-data-t as well
  This will enable whole-module autoimports from IDE (i.e. import { remoteData } from '@devexperts/remote-data-ts')

[Sky161]

#69