Add option for wrapping only if it doesn't fit a page.

**Is your feature request related to a problem? Please describe.**
On my PDF there are certain elements where I use wrap={false} because it renders more nicely. There's a problem, I can't control wether this elements will fit or not on a page because they contain content made by the user.

**Describe the solution you'd like**
`wrap` is now a boolean prop. I propose adding a third option `"onlyIfUnavoidable"` that behaves as `wrap={false}` and when it doesn't fit, resorts to true

**Describe alternatives you've considered**
Right now I have some dumb heuristic to get a sense of the height of the element so I can control the what I pass to `wrap`