Add HSV conversion

Sources/LibMakeColors/Model/Color+HSV.swift

@@ -0,0 +1,36 @@
+extension Color {
+    init(hue: Int, saturation: UInt8, value: UInt8, alpha: UInt8 = 0xFF) {
+        let degrees = abs(hue % 360)
+
+        let s = Double(saturation) / 0xFF
+        let v = Double(value) / 0xFF
+        let C = s * v
+        let X = C * (1 - abs((Double(degrees) / 60).truncatingRemainder(dividingBy: 2) - 1))
+        let m = v - C
+
+        let result: (r: Double, g: Double, b: Double)
+        switch degrees {
+        case 0..<60:
+            result = (C, X, 0)
+        case 60..<120:
+            result = (X, C, 0)
+        case 120..<180:
+            result = (0, C, X)
+        case 180..<240:
+            result = (0, X, C)
+        case 240..<300:
+            result = (X, 0, C)
+        case 300..<360:
+            result = (C, 0, X)
+        default:
+            fatalError("Degrees out of range")
+        }
+
+        self.init(
+            red: UInt8(((result.r + m) * 0xFF).rounded()),
+            green: UInt8(((result.g + m) * 0xFF).rounded()),
+            blue: UInt8(((result.b + m) * 0xFF).rounded()),
+            alpha: alpha
+        )
+    }
+}