Move utils from IO module to Events module

DEVSIX-5233

Autoported commit.
Original commit hash: [5810fb557]
Manual files:
io/src/main/java/com/itextpdf/io/codec/Base64.java
io/src/main/java/com/itextpdf/io/util/FileUtil.java
io/src/main/java/com/itextpdf/io/util/SystemUtil.java
events/src/test/java/com/itextpdf/events/utils/Base64Test.java
io/src/test/java/com/itextpdf/io/util/SystemUtilTest.java
io/src/test/java/com/itextpdf/io/util/UrlUtilTest.java
kernel/src/main/java/com/itextpdf/kernel/counter/data/EventDataHandler.java
sign/src/main/java/com/itextpdf/signatures/SignUtils.java
sign/src/test/java/com/itextpdf/signatures/testutils/builder/TestTimestampTokenBuilder.java
sign/src/test/java/com/itextpdf/signatures/testutils/cert/TestCertificateBuilder.java

Author: introfog

itext.tests/itext.io.tests/itext/io/util/FormattingStreamWriterUnitTest.cs renamed to itext.tests/itext.events.tests/itext/events/utils/FormattingStreamWriterUnitTest.cs

@@ -26,7 +26,7 @@ You should have received a copy of the GNU Affero General Public License
 using System.Threading;
 using iText.Test;
 
-namespace iText.IO.Util
+namespace iText.Events.Utils
 {
     public class FormattingStreamWriterUnitTest : ExtendedITextTest {
 

itext.tests/itext.io.tests/itext/io/util/MapUtilTest.cs renamed to itext.tests/itext.events.tests/itext/events/utils/MapUtilTest.cs

@@ -22,10 +22,9 @@ You should have received a copy of the GNU Affero General Public License
 */
 using System;
 using System.Collections.Generic;
-using iText.Events.Utils;
 using iText.Test;
 
-namespace iText.IO.Util {
+namespace iText.Events.Utils {
     public class MapUtilTest : ExtendedITextTest {
         [NUnit.Framework.Test]
         public virtual void NullMapsAreEqualTest() {

itext.tests/itext.io.tests/itext/io/util/SystemUtilTest.cs renamed to itext.tests/itext.events.tests/itext/events/utils/SystemUtilTest.cs

@@ -46,14 +46,17 @@ source product.
 using System.Text;
 using iText.Test;
 
-namespace iText.IO.Util {
+namespace iText.Events.Utils {
     public class SystemUtilTest : ExtendedITextTest {
+        private const String MAGICK_COMPARE_ENVIRONMENT_VARIABLE_LEGACY = "compareExec";
+        private const String MAGICK_COMPARE_ENVIRONMENT_VARIABLE = "ITEXT_MAGICK_COMPARE_EXEC";
+        
         public static readonly String SOURCE_FOLDER = iText.Test.TestUtil.GetParentProjectDirectory(NUnit.Framework
-            .TestContext.CurrentContext.TestDirectory) + "/resources/itext/io/util/SystemUtilTest/";
+            .TestContext.CurrentContext.TestDirectory) + "/resources/itext/events/utils/SystemUtilTest/";
 
 
         private static readonly String DESTINATION_FOLDER = NUnit.Framework.TestContext.CurrentContext.TestDirectory
-                                                           + "/test/itext/io/SystemUtilTest/";
+                                                           + "/test/itext/events/utils/SystemUtilTest/";
 
         // This is empty file that used to check the logic for existed execution file
         public static readonly String STUB_EXEC_FILE = SOURCE_FOLDER + "folder with space/stubFile";
@@ -136,9 +139,9 @@ public virtual void SplitIntoProcessArgumentsMagickCompareTest() {
 
         [NUnit.Framework.Test]
         public virtual void RunProcessAndWaitWithWorkingDirectoryTest() {
-            String imageMagickPath = SystemUtil.GetEnvironmentVariable(ImageMagickHelper.MAGICK_COMPARE_ENVIRONMENT_VARIABLE);
+            String imageMagickPath = SystemUtil.GetEnvironmentVariable(MAGICK_COMPARE_ENVIRONMENT_VARIABLE);
             if (imageMagickPath == null) {
-                imageMagickPath = SystemUtil.GetEnvironmentVariable(ImageMagickHelper.MAGICK_COMPARE_ENVIRONMENT_VARIABLE_LEGACY);
+                imageMagickPath = SystemUtil.GetEnvironmentVariable(MAGICK_COMPARE_ENVIRONMENT_VARIABLE_LEGACY);
             }
             String inputImage = "image.jpg";
             String cmpImage = "cmp_image.jpg";

itext.tests/itext.io.tests/resources/itext/io/util/SystemUtilTest/cmp_image.jpg renamed to itext.tests/itext.events.tests/resources/itext/events/utils/SystemUtilTest/cmp_image.jpg

@@ -42,7 +42,7 @@ source product.
 */
 using System;
 using System.IO;
-using iText.IO.Util;
+using iText.Events.Utils;
 using iText.Test;
 
 namespace iText.IO.Source {

itext.tests/itext.io.tests/resources/itext/io/util/SystemUtilTest/folder with space/stubFile renamed to itext.tests/itext.events.tests/resources/itext/events/utils/SystemUtilTest/folder with space/stubFile

@@ -42,6 +42,7 @@ source product.
 */
 using System;
 using System.IO;
+using iText.Events.Utils;
 using iText.IO;
 using iText.Test;
 

itext.tests/itext.io.tests/resources/itext/io/util/SystemUtilTest/image.jpg renamed to itext.tests/itext.events.tests/resources/itext/events/utils/SystemUtilTest/image.jpg

@@ -42,6 +42,7 @@ source product.
 */
 using System;
 using System.IO;
+using iText.Events.Utils;
 using iText.Test;
 
 namespace iText.IO.Util {

itext.tests/itext.io.tests/itext/io/source/RAFRandomAccessSourceTest.cs

@@ -42,6 +42,7 @@ source product.
 */
 using System;
 using System.IO;
+using iText.Events.Utils;
 using iText.IO;
 using iText.Test;