Support additional UIBarStyle's in RCTConvert

[birkir]

Adds two additional UIBarStyles to RCTConvert

• UIBarStyleBlackOpaque
• UIBarStyleBlackTranslucent

Does not affect any tests or current usage of this conversion.

[pull-bot]

	Warnings
⚠️	📋 Test Plan - This PR appears to be missing a Test Plan.
⚠️	📋 Release Notes - This PR appears to be missing Release Notes.

Generated by 🚫 dangerJS

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[facebook-github-bot]

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[facebook-github-bot]

@birkir I tried to find reviewers for this pull request and wanted to ping them to take another look. However, based on the blame information for the files in this pull request I couldn't find any reviewers. This sometimes happens when the files in the pull request are new or don't exist on master anymore. Is this pull request still relevant? If yes could you please rebase? In case you know who has context on this code feel free to mention them in a comment (one person is fine). Thanks for reading and hope you will continue contributing to the project.

[facebook-github-bot]

@hramos is landing this pull request. If you are a Facebook employee, you can view this diff on Phabricator.

[react-native-bot]

@birkir merged commit ba9c208 into facebook:master.