[Collections] Add CollectionUtils.putAll

Change-Id: I506f40dd6a4ea94d4951e08e85b9672db50ac330

jcommons/org.eclipse.statet.jcommons.util/src/org/eclipse/statet/jcommons/collections/CollectionUtils.java

diff --git a/jcommons/org.eclipse.statet.jcommons.util/src/org/eclipse/statet/jcommons/collections/CollectionUtils.java b/jcommons/org.eclipse.statet.jcommons.util/src/org/eclipse/statet/jcommons/collections/CollectionUtils.java
index e3fc1b3..4aad5fb 100644
--- a/jcommons/org.eclipse.statet.jcommons.util/src/org/eclipse/statet/jcommons/collections/CollectionUtils.java
+++ b/jcommons/org.eclipse.statet.jcommons.util/src/org/eclipse/statet/jcommons/collections/CollectionUtils.java
@@ -17,6 +17,7 @@
 import java.util.Collection;
 import java.util.Iterator;
 import java.util.List;
+import java.util.Map;
 import java.util.RandomAccess;
 
 import org.eclipse.statet.jcommons.lang.NonNull;
@@ -27,6 +28,13 @@
 public class CollectionUtils {
 	
 	
+	public static <K, V> void putAll(final Map<K, V> map, final ImList<K> keys, final V value) {
+		for (final var key : keys) {
+			map.put(key, value);
+		}
+	}
+	
+	
 	public static String toString(final List<@NonNull ?> list, final String sep) {
 		final int n= list.size();
 		if (n <= 0) {