Restore CLASSPATH_ATTR_LIBRARY_PATH_ENTRYs in native .classpath files

Without that launching standalone Java SWT application from the
development workspace fails to load the native binaries of the platform.

Author: HannesWell

binaries/.classpath_cocoa

@@ -8,7 +8,11 @@
     <classpathentry kind="src" path="Eclipse SWT/emulated/expand"/>
     <classpathentry kind="src" path="Eclipse SWT/emulated/tooltip"/>
     <classpathentry kind="src" path="Eclipse SWT PI/common"/>
-    <classpathentry kind="src" path="Eclipse SWT PI/cocoa"/>
+    <classpathentry kind="src" path="Eclipse SWT PI/cocoa">
+        <attributes>
+            <attribute name="org.eclipse.jdt.launching.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY" value="org.eclipse.swt.${target.ws}.${target.os}.${target.arch}"/>
+        </attributes>
+    </classpathentry>
     <classpathentry kind="src" path="Eclipse SWT Accessibility/common"/>
     <classpathentry kind="src" path="Eclipse SWT Accessibility/cocoa"/>
     <classpathentry kind="src" path="Eclipse SWT AWT/common"/>

binaries/.classpath_gtk

@@ -7,7 +7,11 @@
 	<classpathentry kind="src" path="Eclipse SWT/emulated/coolbar"/>
 	<classpathentry kind="src" path="Eclipse SWT/emulated/taskbar"/>
 	<classpathentry kind="src" path="Eclipse SWT/common"/>
-	<classpathentry kind="src" path="Eclipse SWT PI/gtk"/>
+	<classpathentry kind="src" path="Eclipse SWT PI/gtk">
+		<attributes>
+			<attribute name="org.eclipse.jdt.launching.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY" value="org.eclipse.swt.${target.ws}.${target.os}.${target.arch}"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="src" path="Eclipse SWT PI/cairo"/>
 	<classpathentry kind="src" path="Eclipse SWT PI/common"/>
 	<classpathentry kind="src" path="Eclipse SWT Accessibility/gtk"/>

binaries/.classpath_win32

@@ -4,7 +4,11 @@
 	<classpathentry kind="src" path="Eclipse SWT/win32"/>
 	<classpathentry kind="src" path="Eclipse SWT/common"/>
 	<classpathentry kind="src" path="Eclipse SWT PI/common"/>
-	<classpathentry kind="src" path="Eclipse SWT PI/win32"/>
+	<classpathentry kind="src" path="Eclipse SWT PI/win32">
+		<attributes>
+			<attribute name="org.eclipse.jdt.launching.CLASSPATH_ATTR_LIBRARY_PATH_ENTRY" value="org.eclipse.swt.${target.ws}.${target.os}.${target.arch}"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="src" path="Eclipse SWT OLE Win32/win32"/>
 	<classpathentry kind="src" path="Eclipse SWT Accessibility/win32"/>
 	<classpathentry kind="src" path="Eclipse SWT Accessibility/common"/>