Add changelog

fastlane/metadata/android/en-US/changelogs/5.0.730-beta.txt

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+5.0 (beta)
+Please see "what's new" video for Beta users: https://youtu.be/XdKmoe95KhI
+
+Highlights:
+- Support for EPUB electronic book format
+- Bookmarks for non-bible documents
+- Cloud synchronize (via Google drive currently)
+- Discrete mode in main app and separate “calculator” app
+- Workspace colors
+- Chained links windows
+- Synchronize groups
+- Search / filter labels
+- Backup Database: choose what to restore
+- MyBible / MySword modules,  Installing, uninstalling, Backup & restore
+- Custom repositories
+- Deep links