Adds support for Windows 10 IoT and .NET Core 3.0.
Features
- All: Added support for .NET Core 3.0.
- All: Added support for Microsoft Windows 10 IoT (via .NET Core 3.0).
- SSH: Added SshGssApiCredentials.AccountName property to make it possible to specify an account name to be passed to the SSH server.
- SSH: Added workaround for legacy WS_FTP 7.x servers that encode long SSH packets improperly.
- Common: Optimized internal Task infrastructure on old .NET platforms.