add dialogView and improve message read view

enzevalos_iphone.xcodeproj/project.pbxproj

enzevalos_iphone/Dialog/DialogOption.swift

enzevalos_iphone/Dialog/DialogViewController.swift

enzevalos_iphone/PersistentMail +CoreDataProperties.swift

enzevalos_iphone/SwiftUI/Read/ReadMainView.swift

enzevalos_iphone/SwiftUI/Read/ReadViewCoordinator.swift

enzevalos_iphone/SwiftUI/Read/ReadViewModel.swift

...phone/SwiftUI/Read/Tabbed Views/AttachmentsViewMain.swift

...UI/Read/Tabbed Views/MessageViewChildren/DialogView.swift

...os_iphone/SwiftUI/Read/Tabbed Views/MessageViewMain.swift

...los_iphone/SwiftUI/Read/Tabbed Views/SenderViewMain.swift

...hone/SwiftUI/SupportingViews/Geometry/CornerRounder.swift