SFTP / SCP connectors missing authentication options to use a private key

[brokenjacobs]

These settings collectively are:

camel.sink.endpoint.privateKey | Set the private key as byte so that the SFTP endpoint can do private key verification.
camel.sink.endpoint.privateKeyFile | Set the private key file so that the SFTP endpoint can do private key verification.
camel.sink.endpoint.privateKeyPassphrase | Set the private key file passphrase so that the SFTP endpoint can do private key verification. |
camel.sink.endpoint.privateKeyUri | Set the private key file (loaded from classpath by default) so that the SFTP endpoint can do private key verification.

Settings are also missing for hostkey checking, and providing a known hosts entry for the remote for validation:
camel.sink.endpoint.strictHostKeyChecking
camel.sink.endpoint.useUserKnownHostsFile

Setting a private key and known hosts file is usually done for ssh applications and is not possible with the current Kamelet.

[oscerd]

for SFTP this is a duplicate of: #778

[oscerd]

I would avoid the privateKey parameter and just use the privateKeyFile