feat(UI): Add version text

Assets/JCSUnity/Scripts/UI/Version/JCS_VersionText.cs

@@ -0,0 +1,44 @@
+/**
+ * $File: JCS_VersionText.cs $
+ * $Date: 2023-08-02 $
+ * $Revision: $
+ * $Creator: Jen-Chieh Shen $
+ * $Notice: See LICENSE.txt for modification and distribution information 
+ *                   Copyright (c) 2023 by Shen, Jen-Chieh $
+ */
+using UnityEngine;
+using MyBox;
+
+namespace JCSUnity
+{
+    /// <summary>
+    /// Display version number.
+    /// </summary>
+    public class JCS_VersionText : JCS_TextObject
+    {
+        /* Variables */
+
+        [Separator("Initialize Variables (JCS_VersionText)")]
+
+        [Tooltip("Format string to show version text.")]
+        [SerializeField]
+        public string mFormat = "v{0}";
+
+        /* Setter & Getter */
+
+        /* Functions */
+
+        private void Awake()
+        {
+            UpdateVersionNo();
+        }
+
+        /// <summary>
+        /// Update the version number once.
+        /// </summary>
+        public void UpdateVersionNo()
+        {
+            this.text  = string.Format(mFormat, Application.version);
+        }
+    }
+}