Move OpenPGPCertificateCreationDialog to Libkleo
Allow to reuse it in gpgpass, kmail and gpgol.js
This also move some support classes:
- ErrorLabel -> exposed publicly, removed from Kleopatra
- Expiration -> exposed publicly, removed from Kleopatra
- KeyParameter -> exposed publicy, removed from Kleopatra
- Validator -> exposed publicy, removed from Kleopatra
- MultiValidator -> private, removed from Kleopatra
- AnimatedExpander -> private, keep in Kleopatra
- FormTextInput -> private, removed from Kleopatra
- KeyAlgo -> not used, removed from Kleopatra
- NameAndEmailWidget -> public, memoved from Kleopatra
Edited by Carl Schwan