Reading and adjusting SuSEfirewall2 configuration moved from inst_finish to inst_proposal

- This has been done because AutoYast profile can be already exported
  1. in inst_proposal
  2. in inst_finish before reading (and writing) the configuration
- Tested in inst-sys
Changes and version
Removed import which is not needed (anymore)
Merge pull request #228 from kobliha/clone-autoyast-profile-first-stage

Fixed cloning the Firewall settings