[TASK] remove ter/Soap and use T3oSoap\AuthenticatedRequest
[TASK] replace filesystem iterators with Symfony\Component\Filesystem
[TASK] move and rename commands
[TASK] disable self-updater because it is not yet reworked and only works with phar
[TASK] clean up EmConf/UpdateCommand and add some documentation
[TASK] remove non-functional option --no-interaction
[TASK] clean up T3x/CreateCommand and add some documentation
[TASK] clean up T3x/ExtractCommand and add some documentation
[TASK] clean up Ter/CheckExtensionKeyCommand and add some documentation
[TASK] clean up Ter/RegisterExtensionKeyCommand and Ter/DeleteExtensionKeyCommand and add some documentation
[TASK] clean up Ter/FetchCommand and add some documentation
[TASK] make version an option in Ter/FetchCommand
[TASK] make version an option in Ter/InfoCommand
[TASK] clean up Ter/InfoCommand and add some documentation
[TASK] clean up Ter/LoginCommand and add some documentation
[TASK] clean up Ter/PingCommand and add some documentation
[TASK] clean up Ter/SearchAllCommand and add some documentation
[TASK] clean up Ter/SearchExtensionKeyCommand and add some documentation
[TASK] clean up Ter/SearchUserCommand and add some documentation
[TASK] clean up Ter/UpdateInfoCommand and add some documentation