Require Framework 11.0.6, Remove the console commands

[bschmalhofer]

The Console commands Àdmin::ImportExport::Exportand Admin::ImportExport::Import` are included on OTOBO 11.0.6. So the commands can be removed from the package.

[bschmalhofer]

Not that on a 11.0.6 Installation, the new package can only be installed when adapting the RELEASE file.

otobo@12cce9a0eef6:~$ cat RELEASE 
PRODUCT = OTOBO
VERSION = 11.0.6

[stefanhaerter]

Has this been implemented yet or is it an open topic?