Upgrade to libvips v8.14.0-rc1

- Replace GIF 'optimise' option with 'reuse'
- Add 'progressive' option to GIF
- Add 'wrap' option to text creation
- Add 'formatMagick' property to *magick input metadata

src/metadata.h

@@ -41,6 +41,7 @@ struct MetadataBaton {
   int pagePrimary;
   std::string compression;
   std::string resolutionUnit;
+  std::string formatMagick;
   std::vector<std::pair<int, int>> levels;
   int subifds;
   std::vector<double> background;