Common: LambdaUtils: Add firstOfType util method.

The firstOfType method returns the first element from
a given collection that is assignable from the given
type. This method allows to reduce the LoCs since the
described task is quite common.
refs 3203

org.fortiss.tooling.common/trunk/src/org/fortiss/tooling/common/util/LambdaUtils.java

@@ -237,6 +237,20 @@ public class LambdaUtils {
 		return outCol;
 	}
 
+	/**
+	 * Returns the first element of the given {@code inCol} collection that is assignable from the
+	 * given type.
+	 * 
+	 * @param inCol
+	 *            Collection to be filtered.
+	 * @param typeFilter
+	 *            Type for which the elements shall be filtered.
+	 * @return Optional of the first found element of the given type.
+	 */
+	public static <S, T> Optional<T> firstOfType(Collection<S> inCol, Class<T> typeFilter) {
+		return getFirst(filterType(inCol, typeFilter));
+	}
+
 	/**
 	 * Applies the given {@code action} to each element of the given {@code inputCollection}.
 	 *