[configure-splash-screen]<feat>: Make Android configuration conform to the new native API

[bbarthec]

Recent change in expo-splash-screen expo/expo@2770008#diff-70eefa11c7e96de30d02e5d069488fe2R35-R40
changed the native Android API.

This PR accommodates this native API change.

Resolves #2586

All published versions since expo/expo@2196ceb needs this adjustment:

• 0.6.x
• 0.7.x@next

TODOs after merge:

• publish new version of @expo/configure-splash-screen
• bump dependency version in expo-splash-screen package on expo/expo#sdk-39 branch and publish with patch version for 0.6.x
• bump dependency version in expo-splash-screen package on expo/expo#master branch and publish with patch version for 0.7.x@next

[sjchmiela]

The logic seems a bit too magicy to me (especially the fact that the first .applyAction could be replaced by if (content.includes() in the would-be-only second action), but as I understand it the results should be correct and as I'm not a major contributor to expo-cli I won't argue to change this. 👍

[bbarthec]

@expo/configure-splash-screen is not designed to be backward compatible and there are at least two risky scenarios that might not be working fully:

• when the user was using the previous version of this command, upgraded and want to run this command again - I've tried to generalise RegExps to cover it though
• this command would not be working with @expo/config if the targeted project is not using expo-splash-screen@0.{6,7}.x package - solution for this is to tell the people to upgrade to the newest expo-splash-screen version