Unignore tests in ImageTest.

Autoported commit.
Original commit hash: [672e2ba]

Author: pavel-alay

itext.tests/itext.layout.tests/itext/layout/ImageTest.cs

@@ -484,9 +484,9 @@ public virtual void ImageTest20() {
                 , "diff"));
         }
 
+        //TODO(DEVSIX-1658)
         /// <exception cref="System.IO.IOException"/>
         /// <exception cref="System.Exception"/>
-        [NUnit.Framework.Ignore("DEVSIX-1658")]
         [NUnit.Framework.Test]
         public virtual void ImageTest21() {
             String outFileName = destinationFolder + "imageTest21.pdf";
@@ -633,10 +633,10 @@ public virtual void ImageInParagraphBorderTest() {
                 , "diff"));
         }
 
+        //TODO(DEVSIX-1022)
         /// <exception cref="System.IO.IOException"/>
         /// <exception cref="System.Exception"/>
         [NUnit.Framework.Test]
-        [NUnit.Framework.Ignore("DEVSIX-1022")]
         public virtual void ImageRelativePositionTest() {
             String outFileName = destinationFolder + "imageRelativePositionTest.pdf";
             String cmpFileName = sourceFolder + "cmp_imageRelativePositionTest.pdf";
@@ -711,10 +711,10 @@ public virtual void ImageInTableTest02() {
                 , "diff"));
         }
 
+        //TODO(DEVSIX-1045)
         /// <exception cref="System.IO.IOException"/>
         /// <exception cref="System.Exception"/>
         [NUnit.Framework.Test]
-        [NUnit.Framework.Ignore("DEVSIX-1045")]
         public virtual void FixedPositionImageTest01() {
             String outFileName = destinationFolder + "fixedPositionImageTest01.pdf";
             String cmpFileName = sourceFolder + "cmp_fixedPositionImageTest01.pdf";

itext.tests/itext.layout.tests/resources/itext/layout/ImageTest/cmp_fixedPositionImageTest01.pdf

@@ -1 +1 @@
-07da24d0c9a2e0bf40f2a57900b6b1a53dc2f58e
+672e2bae882d9b5bc01a341a83f9711a4d3dac47