增加Argon2类，实现Argon2算法（issue#3890@Github）

hutool-crypto/src/test/java/org/dromara/hutool/crypto/digest/Argon2Test.java

@@ -0,0 +1,22 @@
+package org.dromara.hutool.crypto.digest;
+
+import org.dromara.hutool.core.codec.binary.Base64;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+public class Argon2Test {
+	@Test
+	public void argon2Test() {
+		final Argon2 argon2 = new Argon2();
+		final byte[] digest = argon2.digest("123456".toCharArray());
+		Assertions.assertEquals("wVGMOdzf5EdKGANPeHjaUnaFEJA0BnAq6HcF2psFmFo=", Base64.encode(digest));
+	}
+
+	@Test
+	public void argon2WithSaltTest() {
+		final Argon2 argon2 = new Argon2();
+		argon2.setSalt("123456".getBytes());
+		final byte[] digest = argon2.digest("123456".toCharArray());
+		Assertions.assertEquals("sEpbXTdMWra36JXPVxrZMm3xyoR5GkMlLhtW0Kwp9Ag=", Base64.encode(digest));
+	}
+}