Rework book reader UI to use LocalizedBook data

Book reader UI now only consumes LocalizedBook input. Classic book files are loaded as a fallback if localized file not found.
Removed LabelFormatter and reworked this functionality back into book reader.
Added /font, /color, /scale markup to string > RSC converter. These markup codes only supported in book reader.
Fixed OpenBook not checking file exists before trying to open so it can fallback to classic.

Assets/Scripts/API/TextFile.cs

@@ -93,7 +93,7 @@ public static Token CreateFormatToken(Formatting format)
         /// <summary>
         /// Special Text Resource formatting bytes.
         /// http://www.uesp.net/wiki/Daggerfall:Text_Record_Format
-        /// This is a work in progress.
+        /// New custom codes to be 0x100 and above
         /// </summary>
         public enum Formatting
         {
@@ -122,6 +122,10 @@ public enum Formatting
             SubrecordSeparator = 0xff,
             EndOfRecord = 0xfe,
 
+            // Custom codes
+            Color = 0x100,
+            Scale = 0x101,
+
             Nothing = 0xffff,
         }
 

Assets/Scripts/Game/LocalizedBook.cs

@@ -120,9 +120,14 @@ public bool OpenLocalizedBookFile(string filename)
         if (!fileNoExt.EndsWith(localizedFilenameSuffix))
             filename = fileNoExt + localizedFilenameSuffix + fileExtension;
 
-        // Attempt to load file from StreamingAssets/Text/Books
         // TODO: Also seek localized book file from mods
+
+        // Get path to localized book file and check it exists
         string path = Path.Combine(Application.streamingAssetsPath, textFolderName, booksFolderName, filename);
+        if (!File.Exists(path))
+            return false;
+
+        // Attempt to load file from StreamingAssets/Text/Books
         string[] lines = File.ReadAllLines(path);
         if (lines == null || lines.Length == 0)
             return false;
@@ -252,15 +257,4 @@ string ConvertTokensToString(TextFile.Token[] tokens)
 
         return text;
     }
-
-    /// <summary>
-    /// Convert book markup back to tokens.
-    /// </summary>
-    /// <param name="text"></param>
-    /// <returns></returns>
-    TextFile.Token[] ConvertStringToTokens(string input)
-    {
-        // TODO:
-        return null;
-    }
 }