react-native-navigation POC

Requirements

✅ navigator push
✅ navigator pop
😏 navigator replace (may not implement https://github.com/wix/react-native-navigation/issues/286. Can get around this by popping and pushing without animation)
✅ navigator pop to top
😏 navigator pop number of routes (may not be implemented https://github.com/wix/react-native-navigation/issues/1591. Can get around this by popping twice.)
✅ configurable navigation transitions per screen
✅ select a different tab
✅ custom styles for different platform headers
✅ custom header components
✅ update route params
👎🏼 conduct navigation actions through non-screen level components

✅ hide tabbar for individual screen
✅ standard and extendable deep link handling (not as baked in as react-navigation)
😏 integrate with redux (works with redux, but does not look like there's a way to get navigation state from a reducer)
👎🏼 translucent navigation bar (buttons and titles disappear when you try to make it blur... so... not out of the box. See https://github.com/wix/react-native-navigation/issues/442)

Doesn't support empty tabs, so no modal cart
Doesn't support navigation from non-screen components
Doesn't support out-of-the-box navigator.replace()
Custom navigation bar support does not visually transition well from one screen to another and cannot cover back button.
Icons on tabbar need to be images or it can be hacked in this way https://github.com/wix/react-native-navigation/issues/43.