Add support for React.forwardRef

[bartlangelaan]

I'm not that familiar with this module, but this seems to fix #38.

It uses the internal $$typeof property from React. I didn't test it with Preact, but I couldn't find anything about forwardRef in Preact so I think it doesn't exist yet.

[codecov]

Codecov Report

Merging #39 into master will increase coverage by 0.2%.
The diff coverage is 100%.

@@            Coverage Diff            @@
##           master      #39     +/-   ##
=========================================
+ Coverage   95.87%   96.07%   +0.2%     
=========================================
  Files           1        1             
  Lines          97      102      +5     
  Branches       29       31      +2     
=========================================
+ Hits           93       98      +5     
  Misses          4        4

Impacted Files	Coverage Δ
src/index.js	96.07% <100%> (+0.2%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update c04e8c1...0d9f69e. Read the comment docs.

[ctrlplusb]

Awesome! Thanks for taking this on. I will try review soon. 🤘

[bartlangelaan]

That would be awesome! This is blocking upgrading some of our websites to the latest version of React.

[ctrlplusb]

Nice work. 👍