feat: expose UUID helper as a class of static methods (#10)

Let's expose the uuid helpers as a class of static methods instead. I'm not sure if this approach is actually better but we're going to live with it for a while. I have done UUID helpers before this library as a class. So let's run with it again.

Reviewed-on: https://codeberg.org/vlw/scaffold/pulls/10

src/Helpers/UUID.php

@@ -2,37 +2,42 @@
 
 	namespace vlw\Scaffold\Helpers;
 
-	const UUID_LENGTH = 36;
-
 	/**
-	 * Generate an all binary 0:s UUID
-	 * 
-	 * @return string
+	 * Generate Universally unique identifiers
 	 */
-	function uuid_nil(): string {
-		return "00000000-0000-0000-0000-000000000000";
-	}
+	class UUID {
+		public const LENGTH = 36;
 
-	/**
-	 * Generate an all binary 1:s UUID
-	 * 
-	 * @return string
-	 */
-	function uuid_max(): string {
-		return "FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF";
-	}
+		/**
+		 * Generate an all binary 0:s UUID
+		 * 
+		 * @return string
+		 */
+		public static function nil(): string {
+			return "00000000-0000-0000-0000-000000000000";
+		}
 
-	/**
-	 * Generate a version 4 UUID
-	 * 
-	 * @return string
-	 */
-	function uuid_v4(): string {
-		return sprintf("%04x%04x-%04x-%04x-%04x-%04x%04x%04x",
-			mt_rand(0, 0xffff), mt_rand(0, 0xffff),
-			mt_rand(0, 0xffff),
-			mt_rand(0, 0x0fff) | 0x4000,
-			mt_rand(0, 0x3fff) | 0x8000,
-			mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff)
-		);
+		/**
+		 * Generate an all binary 1:s UUID
+		 * 
+		 * @return string
+		 */
+		public static function max(): string {
+			return "FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF";
+		}
+
+		/**
+		 * Generate a version 4 UUID
+		 * 
+		 * @return string
+		 */
+		public static function v4(): string {
+			return sprintf("%04x%04x-%04x-%04x-%04x-%04x%04x%04x",
+				mt_rand(0, 0xffff), mt_rand(0, 0xffff),
+				mt_rand(0, 0xffff),
+				mt_rand(0, 0x0fff) | 0x4000,
+				mt_rand(0, 0x3fff) | 0x8000,
+				mt_rand(0, 0xffff), mt_rand(0, 0xffff), mt_rand(0, 0xffff)
+			);
+		}
 	}