Bug 1302125

Currently when submitting a CSR via CLI the user is still required to specify a request type and a subject DN:

{{{
$ pki ca-cert-request-submit \
 --profile caUserCert \
 --csr-file testuser.csr \
 --request-type pkcs10 \
 --subject UID=testuser,O=EXAMPLE
}}}

To improve usability, the CLI should obtain the request type and subject DN from the CSR itself. The server should also obtain the information from the CSR directly.

The client may display the request data for confirmation:

{{{
$ pki ca-cert-request-submit --profile caUserCert --csr-file testuser.csr
Certificate request:
  Request type     : PKCS #10
  Subject:
    UID            : testuser
    Organization   : EXAMPLE
  Key Type         : RSA
  Key Size         : 2048
  ...
Submit certificate request (Y/n)? 
}}}

There should also be an option to skip the confirmation:

{{{
$ pki ca-cert-request-submit --profile caUserCert --csr-file testuser.csr -y
}}}