Move CssNonStandardRuleSet from html2pdf.css.resolve package to html2pdf.css.page and make it package private for now

Author: yulian-gaponenko

src/main/java/com/itextpdf/html2pdf/css/page/CssMarginRule.java

@@ -44,7 +44,6 @@ This file is part of the iText (R) project.
 
 import com.itextpdf.html2pdf.css.CssDeclaration;
 import com.itextpdf.html2pdf.css.CssNestedAtRule;
-import com.itextpdf.html2pdf.css.resolve.CssNonStandardRuleSet;
 import com.itextpdf.html2pdf.css.selector.CssPageMarginBoxSelector;
 import com.itextpdf.html2pdf.css.selector.ICssSelector;
 import java.util.List;

src/main/java/com/itextpdf/html2pdf/css/resolve/CssNonStandardRuleSet.java renamed to src/main/java/com/itextpdf/html2pdf/css/page/CssNonStandardRuleSet.java

@@ -40,14 +40,14 @@ This file is part of the iText (R) project.
     For more information, please contact iText Software Corp. at this
     address: sales@itextpdf.com
  */
-package com.itextpdf.html2pdf.css.resolve;
+package com.itextpdf.html2pdf.css.page;
 
 import com.itextpdf.html2pdf.css.CssDeclaration;
 import com.itextpdf.html2pdf.css.CssRuleSet;
 import com.itextpdf.html2pdf.css.selector.ICssSelector;
 import java.util.List;
 
-public class CssNonStandardRuleSet extends CssRuleSet {
+class CssNonStandardRuleSet extends CssRuleSet {
     public CssNonStandardRuleSet(ICssSelector selector, List<CssDeclaration> declarations) {
         super(selector, declarations);
     }

src/main/java/com/itextpdf/html2pdf/css/page/CssPageRule.java

@@ -45,14 +45,10 @@ This file is part of the iText (R) project.
 import com.itextpdf.html2pdf.css.CssDeclaration;
 import com.itextpdf.html2pdf.css.CssNestedAtRule;
 import com.itextpdf.html2pdf.css.CssRuleName;
-import com.itextpdf.html2pdf.css.CssRuleSet;
 import com.itextpdf.html2pdf.css.CssStatement;
-import com.itextpdf.html2pdf.css.media.MediaDeviceDescription;
-import com.itextpdf.html2pdf.css.resolve.CssNonStandardRuleSet;
 import com.itextpdf.html2pdf.css.selector.CssPageSelector;
 import com.itextpdf.html2pdf.css.selector.ICssSelector;
 import com.itextpdf.html2pdf.css.util.CssUtils;
-import com.itextpdf.html2pdf.html.node.INode;
 import java.util.ArrayList;
 import java.util.Collection;
 import java.util.List;