createCredential
Creates a credential at the given slot.
This is called during initialization of a DirectAccessCredential, so there is no need to call this explicitly when dealing with DirectAccessCredentials.
Note: this operation will not alter the state of the applet, ie. would not result in the newly created credential being set as the active credential. In order to use the created credential, certifyCredential and setActiveCredential must still be called.
Return
signingKeyCertificate, encryptedPresentationData
Parameters
documentSlot
the slot to provision a credential in