Feature request: fromNow() Relative Time

[styfle]

Would you consider adding a Relative Time feature such as moment's fromNow()?

[aweary]

I would be open to providing similar functionality, as long as it was opt-in. fromNow will likely require a non-trivial amount of code, and size is a top priority.

Maybe it could be an additional export at a separate path?

import fromNow from 'tinytime/fromNow'