[Dev Work] Setting Enhancements

[majora2007]

This is a development story to further enhance how settings for extensions work and provide more customization within MangaManager.

The following needs to be taken care of:

• [x] Move Settings into a library package separate to allow dynamically loaded extensions to take advantage without circular dependencies on the core MM package.
• [x] Provide Validators and Formatters on SettingControl classes, along with some new classes for ComboBoxes to allow Formatters to work
• Refactor the Settings Window to be more flexible
  • [x] Control Buttons (Save, Reset) and Informational labels should be spanning whole row and always on screen
  • [x] Extensions should be populated in tabs or accordions to allow for multiple sub-sections
  • [x] Support for inline validators or at least a message box for errors
• [x] Refactor Language tag to be more close to what Kavita uses
• Start work on providing extension based settings to be worked in CLI project

Unit Tests

• [ ] Tests to validate the Builders
• [ ] Tests to validate FormBundleWidget
• [ ] Tests to validate Saving setting from SettingsWidgetManager

[majora2007]

I will hold on tests as I have plans to work on extensions which will change a lot. These tests will be in extension PR.