Merge branch 'feature/messenger-example-contact-request' into 'development'

...ftpm/xcode/xcshareddata/xcschemes/ContactFeature.xcscheme

.../xcode/xcshareddata/xcschemes/SendRequestFeature.xcscheme

Examples/xx-messenger/Package.swift

...ger.xcodeproj/xcshareddata/xcschemes/XXMessenger.xcscheme

...es/xx-messenger/Sources/AppCore/DBManager/DBManager.swift

...ssenger/Sources/AppCore/DBManager/DBManagerRemoveDB.swift

...xx-messenger/Sources/AppFeature/AppEnvironment+Live.swift

.../xx-messenger/Sources/ContactFeature/ContactFeature.swift

...les/xx-messenger/Sources/ContactFeature/ContactView.swift

Examples/xx-messenger/Sources/HomeFeature/HomeFeature.swift

...x-messenger/Sources/RegisterFeature/RegisterFeature.swift

...enger/Sources/SendRequestFeature/SendRequestFeature.swift

...essenger/Sources/SendRequestFeature/SendRequestView.swift

...ssenger/Sources/UserSearchFeature/UserSearchFeature.swift

...r/Sources/UserSearchFeature/UserSearchResultFeature.swift

...nger/Sources/UserSearchFeature/UserSearchResultView.swift

...-messenger/Sources/UserSearchFeature/UserSearchView.swift

...enger/Tests/ContactFeatureTests/ContactFeatureTests.swift

...x-messenger/Tests/HomeFeatureTests/HomeFeatureTests.swift

...ger/Tests/RegisterFeatureTests/RegisterFeatureTests.swift