Show verification status next to messages

CMakeLists.txt

resources/qml/EncryptionIndicator.qml

resources/qml/TimelineRow.qml

resources/qml/UserProfile.qml

src/Cache.cpp

src/CacheCryptoStructs.h

src/DeviceVerificationFlow.cpp

src/Olm.cpp

src/Olm.h

src/timeline/TimelineModel.cpp

src/timeline/TimelineModel.h

src/timeline/TimelineViewManager.cpp

src/ui/UserProfile.cpp

src/ui/UserProfile.h