YADE with jump host should support CredentialStore

Current Situation

• YADE configuration allows use of KeePass databases
• This feature is not supported for use with a jump host

Desired Behaviour

• This feature should be available when using a jump host too

Implementation Note

• YADE needs a KeePass database file only on the host where the YADE client is installed, not on a jump host.
• CredentialStore syntax (cs://) can be used in both the SFTPFragment and in the JumpFragment
  • An exception is the using of the KeePass attachment in the SFTPFragment / AuthenticationFile element:
    • SFTPFragment / AuthenticationFile must contain the file path to the private key file