react-native-camera

feat(windows): updates for RNW 0.63 (#2960)

Build:
* Updated huycn.zxingcpp.winrt to v1.1.0, enables ARM64 build on RNW >=
  0.61
* Updated ReactNativeCameraCPP.sln with RNW 0.63 dependencies
* Added ReactNativeCameraCPP62.sln for building against RNW 0.62
* Cleaned up ReactNativeCameraCPP61.sln for building against RNW 0.61

ReactNativeCamera RNCamera component:
* Passing unspecified maxDuration to recordAsync no longer stops
  recording immediately

Documentation:
* Updated installation docs for RNW 0.63 auto-linking

Closes #2942, #2944