Add qr-code generator for external urls for frontends and login

[TheMeinerLP]

This pull request includes:

• [ ] breaking changes
• [X] no breaking changes

Changes made to the repository:

• Add external urls for the qrcode.
• Add qrcode generator.
• Add login option via command
• Add setup for rest api

Documentation of test results:

Tests works fine.

Related issues/discussions:

Related/Blocked PR: https://github.com/CloudNetService/CloudNet-v3/pull/696

[TheMeinerLP]

Feature complete from side