Add support to React Native

[r0b0t3d]

Hi, I'm using this lib with React Native. Here is the warning that I got with latest version 6.2.0

warn Package @turf/bearing has been ignored because it contains invalid configuration. Reason: Package subpath './package.json' is not defined by "exports" in /Volumes/DATA/workspace/outdoorvideo/source/outdoorvideo-app/node_modules/@turf/bearing/package.json
warn Package @turf/distance has been ignored because it contains invalid configuration. Reason: Package subpath './package.json' is not defined by "exports" in /Volumes/DATA/workspace/outdoorvideo/source/outdoorvideo-app/node_modules/@turf/distance/package.json
warn Package @turf/helpers has been ignored because it contains invalid configuration. Reason: Package subpath './package.json' is not defined by "exports" in /Volumes/DATA/workspace/outdoorvideo/source/outdoorvideo-app/node_modules/@turf/helpers/package.json
warn Package @turf/length has been ignored because it contains invalid configuration. Reason: Package subpath './package.json' is not defined by "exports" in /Volumes/DATA/workspace/outdoorvideo/source/outdoorvideo-app/node_modules/@turf/length/package.json
warn Package @turf/midpoint has been ignored because it contains invalid configuration. Reason: Package subpath './package.json' is not defined by "exports" in /Volumes/DATA/workspace/outdoorvideo/source/outdoorvideo-app/node_modules/@turf/midpoint/package.json
warn Package @turf/nearest-point-on-line has been ignored because it contains invalid configuration. Reason: Package subpath './package.json' is not defined by "exports" in /Volumes/DATA/workspace/outdoorvideo/source/outdoorvideo-app/node_modules/@turf/nearest-point-on-line/package.json

References:

• https://github.com/nodeca/js-yaml/pull/594/files
• Add package.json to exports for React Native lorenzofox3/zora#74

[mfedderly]

Thanks for fixing this!

[smallsaucepan]

While following up on PR #2513 came across the comment below on the RN repo
react-native-community/cli#1168 (comment)

Ultimately we should probably roll back this PR as it was on RN to fix the problem all along, and it might now be causing other tools problems with Turf. Will confirm.