Removed Obsolete A_Property Methods

Changed GetDimensions to handle a stream at the end and one exit

Switched to using Action? over IDlibDotNet for Tick method

Switched to using AsReadOnly over new()

Moved Meta Base to Shared

Shared/Models/ExifDirectory.cs

@@ -6,7 +6,7 @@ namespace View_by_Distance.Shared.Models;
 public record ExifDirectory(AviDirectory[] AviDirectories,
                             ExifDirectoryBase[] ExifBaseDirectories,
                             FileMetadataDirectory[] FileMetadataDirectories,
-                            FilePath FilePath,
+                            FilePath? FilePath,
                             GifHeaderDirectory[] GifHeaderDirectories,
                             GpsDirectory[] GpsDirectories,
                             int? Height,