Color Picker: add Oklab and Oklch color formats (#38052)

* Resolve Resources.resw conflict

* Update CIE LCh chroma practical upper bound according to CSS spec

* Add review suggestions

* Add WIP tests (lch and oklch do not pass yet)

* Deduplicate Lab to LCh converter method

* Update expect.txt

* Fix liberty test color

* Reimplement oklab with better precision

* Remove CIE LCh

* Add tooltip for color param descriptions

* Update spell-check expect.txt with new words

* Remove 'cielch' and 'lch' from expect.txt

---------

Co-authored-by: Gordon Lam (SH) <yeelam@microsoft.com>
Co-authored-by: Clint Rutkas <clint@rutkas.com>
Co-authored-by: Shawn Yuan <128874481+shuaiyuanxx@users.noreply.github.com>

src/settings-ui/Settings.UI.Library/Enumerations/ColorRepresentationType.cs

@@ -80,5 +80,20 @@ namespace Microsoft.PowerToys.Settings.UI.Library.Enumerations
         /// Color presentation as an 8-digit hexadecimal integer (0xFFFFFFFF)
         /// </summary>
         HexInteger = 13,
+
+        /// <summary>
+        /// Color representation as CIELCh color space (L[0..100], C[0..230], h[0°..360°])
+        /// </summary>
+        CIELCh = 14,
+
+        /// <summary>
+        /// Color representation as Oklab color space (L[0..1], a[-0.5..0.5], b[-0.5..0.5])
+        /// </summary>
+        Oklab = 15,
+
+        /// <summary>
+        /// Color representation as Oklch color space (L[0..1], C[0..0.5], h[0°..360°])
+        /// </summary>
+        Oklch = 16,
     }
 }