* Renamed fido2key property username to userDisplayName
* Renamed username property on fido2key object to userdisplayname
* updated username to userDisplayName in fido2 export
* Moved fido2 models to vault in libs
* Moved fido2 models to vault in libs
* Moved fido2 services and abstractions to vault folder in libs
* Moved fido2 popup to vault folder on the browser
* Updated import path after moving files to the vault folder
* Moved authenticator abstraction and service to the vault folder
* Updated content and page script path
* Added content script, page script and background messaging to vault
* fixed lint issue
* Updated reference paths
* Added missing fallbacksupported property in test files
* Added missing fallbacksupported to the newSession method