add Pattern.asMatchPredicate

Summary

A new method Pattern.asMatchPredicate that converts a pattern into a predicate using Matcher.matches.

Problem

A method that converts a pattern into a predicate using Matcher.find already exists. It would be helpful to have a similar method that creates a predicate using Matcher.matches.

Solution

A new method that produces a predicate using the semantics of Matcher.match.

Specification

     /**
+     * Creates a predicate that tests if this pattern matches a given input string.
+     *
+     * @apiNote
+     * This method creates a predicate that behaves as if it creates a matcher
+     * from the input sequence and then calls {@code matches}, for example a
+     * predicate of the form:
+     * {@code
+     *   s -> matcher(s).matches();
+     * }
+     *
+     * @return  The predicate which can be used for matching an input string
+     * against this pattern.
+     * @since   11
+     * @see Matcher#matches
+     */