Update NativeModulesWindows.md

[Kudo]

Revise the document to use NativeEventEmitter, as RCTDeviceEventEmitter in JavaScript is deprecated.

[msftclas]

@Kudo,
Thanks for having already signed the Contribution License Agreement. Your agreement has not been validated yet. We will now review your pull request.
Thanks,
Microsoft Pull Request Bot

[codecov-io]

Codecov Report

Merging #1089 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1089   +/-   ##
=======================================
  Coverage   31.53%   31.53%           
=======================================
  Files         253      253           
  Lines       18037    18037           
  Branches     1519     1519           
=======================================
  Hits         5688     5688           
  Misses      12192    12192           
  Partials      157      157

---

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 fd864b7...ba93398. Read the comment docs.