rnv eject does not work properly

[pavjacko]

1. in renative project run npx rnv eject -p ios or npx rnv eject -p android

output structure should look like this:

[pauliusguzas]

@pavjacko how should this be tested?

[GabrieleKaceviciute]

android issue is tracked on #1307

[mihaiblaga89]

1. adding enableJetifier = true in renative.json for an android based platform should make gradle.properties from platformBuilds contain android.enableJetifier=true. Same for enableAndroidX
2. will create a scheme in app-harness to be able to test the plugin injections