Adds ability to use a YubiKey security key to generate OTP codes and use them to login.

Please also consider this corresponding pull request on the faq repo: #89

• This guide outlines what a YubiKey is and how a user would setup their own to work with XIVLauncher.

Additions:

SettingsControl

• Adds a new CheckBox that enables usage of YubiKey hardware [this requires OTP macros to be enabled]
• Added way for users to setup their YubiKey credentials in-app (See: SecurityKeySetupDialog)

YubiAuth

• Finds and maintains reference to physical YubiKey device
• Handles most methods that retrieve information from the security key and perform operations

OtpInputDialog

• If YubiKey setting is enabled, will attempt to login if device is plugged in or, if applicable, prompt the user to touch their device before authentication occurs
• Made so security key authentication doesn't block the main thread and normal login can occur if user desires

SecurityKeySetupDialog

• A dialog that allows users to enter their authentication key and create a credential on their security key
• User can also decide if they want to use touch prior to authentication

Directory.Build.targets

• Made to ensure the proper DLL is selected for the proper system architecture
  • This was incorrectly imported using the default Yubico.YubiKey implementation