Add test images for miniswhite 32 bit

tests/ImageSharp.Tests/Formats/Tiff/TiffDecoderTests.cs

@@ -175,6 +175,8 @@ namespace SixLabors.ImageSharp.Tests.Formats.Tiff
         [Theory]
         [WithFile(Flower32BitGray, PixelTypes.Rgba32)]
         [WithFile(Flower32BitGrayLittleEndian, PixelTypes.Rgba32)]
+        [WithFile(Flower32BitGrayMinIsWhite, PixelTypes.Rgba32)]
+        [WithFile(Flower32BitGrayMinIsWhiteLittleEndian, PixelTypes.Rgba32)]
         public void TiffDecoder_CanDecode_32Bit_Gray<TPixel>(TestImageProvider<TPixel> provider)
             where TPixel : unmanaged, IPixel<TPixel>
         {

tests/ImageSharp.Tests/TestImages.cs

@@ -599,6 +599,8 @@ namespace SixLabors.ImageSharp.Tests
             public const string Flower24BitGrayLittleEndian = "Tiff/flower-minisblack-24_lsb.tiff";
             public const string Flower32BitGray = "Tiff/flower-minisblack-32.tiff";
             public const string Flower32BitGrayLittleEndian = "Tiff/flower-minisblack-32_lsb.tiff";
+            public const string Flower32BitGrayMinIsWhite = "Tiff/flower-miniswhite-32.tiff";
+            public const string Flower32BitGrayMinIsWhiteLittleEndian = "Tiff/flower-miniswhite-32_lsb.tiff";
 
             public const string Issues1716Rgb161616BitLittleEndian = "Tiff/Issues/Issue1716.tiff";
 

tests/Images/Input/Tiff/flower-miniswhite-32.tiff

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:514417ead3d6c5c6ca33374ef0bb6ecbe5f875a266519d4cbaa4a6b91033d243
+size 12778

tests/Images/Input/Tiff/flower-miniswhite-32_lsb.tiff

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:64c948aa03bc4a24cd1d68bb18b5031c119936154a90f1cb1d9aaabd854c5d9b
+size 12778