Settings Menu Modification

[jlre249]

This PR is intended to:

• close #5
• close #6
• Add a new QML class for Unraid specific settings that:
  • Get stored as key-value entries in the existing customization settings variant map on ImageWriter
  • Get written to config/ident.cfg and config/network.cfg at the end of file extraction in DownloadExtractThread
• The user should be prevented from continuing if:
  • Server name does not match the regex ^[A-Za-z0-9]([A-Za-z0-9\-\.]{0,13}[A-Za-z0-9])?$
  • Static IP is checked AND IP Address, DNS Address, or Gateway Address have invalid parts (outside of the range [0, 255])
  • Add in the initial boot img flashing from the previous usb creator, which also ensures that the volume label gets changed to UNRAID

Unraid Settings Popup

CFG Files

Volume Label Renaming