This commit is a complete rebuild of pkictl. Before everything was all
over the place and adding new commands was kind of a hassle.
Now each command has its own file and can be adjusted on a command
basis. Options are still used by the same name, but can now use
different descriptions.
This is a major rebuilding of the CLI. The library part is split out
into pkilib and the cli handles only the communication with the user,
I/O and the library.
The API will still look the same, but the code should be much better to
grasp. Instead of repeating everything, more will be grouped together
and reused.
With this it is possible to sign a message with a private key and verify
it with a public key.
The only problem is, that it is currently not compatible with openssl
yet.
Gibheer
Gibheer