[ColorPicker]Custom color formats (#22141)

* [ColorPicker] Development: custom color formats, first steps

* ColorPicker development of custom format handling.

* Custom color format developmnet.
Added common helper class for format string
Fixed settings loading
Added numbering if default name exists   (My format (1))

* Custom color format implementation.
Extended the colorPicker settings with the format string
Updated the color to string conversion

* Custom color format in color picker, development.
Adding edit, delete buttons. Implement functionality
Re-arranging settings panel (newly created formats at the top)
Implementing details (valid parameters, more format elements, more types)

* Minor commit

* Development color picker custom formats. "Last" steps.
Replacing hard coded english strings with resources, polishing.

* Adding help to the format edit dialog.

* Undoing changes unwillingly commited in Host module

* Fixing bug unable to delete a custom format after renaming it - use the colorformat object as reference (and not the name)
Modifying the default custom formula
Removing unnecessary using directives

* Udating the default user defined color format

* Removing unnecessary using directive

* ColorPicker Implementing custom color formats: adding custom formats to the default format selection (dropdown box).

* Fix binding of name and example

* Custom color formats, implemented steps:
vorwarts compatibility loading settings.
Fixed UI as requested (removed one settings panel, added button to the first panel)

* Minor change in the UI: description modified

* ColorPicker Custom Color Formats develepoment.
Added conversion from old predefined formats to customizable formats.
Extended default settings (in case settings file is deleted/corrupted).
Minor fixes.

* Fixing color format parameters.
Implementing 3 different Saturation calculations, 2 Hue calculations and 2 Lightness calculations (depending color format)

* Color Picker: New/Edit Color format. Fixing bug when cancelling addition/edit

* ColorPicker. Updating help section, available parameters

* Fix spellchecker

* Remove the MinWidth so that scrollviewers can be drawn

* ColorPicker bugfix: Not allowing to delete the last color format.

src/settings-ui/Settings.UI.Library/ISettingsUtils.cs

@@ -2,6 +2,7 @@
 // The Microsoft Corporation licenses this file to you under the MIT license.
 // See the LICENSE file in the project root for more information.
 
+using System;
 using Microsoft.PowerToys.Settings.UI.Library.Interfaces;
 
 namespace Microsoft.PowerToys.Settings.UI.Library
@@ -21,5 +22,9 @@ namespace Microsoft.PowerToys.Settings.UI.Library
         void DeleteSettings(string powertoy = "");
 
         string GetSettingsFilePath(string powertoy = "", string fileName = "settings.json");
+
+        T GetSettingsOrDefault<T, T2>(string powertoy = "", string fileName = "settings.json", Func<object, object> settingsUpgrader = null)
+            where T : ISettingsConfig, new()
+            where T2 : ISettingsConfig, new();
     }
 }