Added keycloak compatible hasher example.

Author: mooreds

src/main/java/com/mycompany/fusionauth/plugins/guice/MyExampleFusionAuthPluginModule.java

@@ -57,5 +57,8 @@ protected void configure() {
  // Argon2id
  // https://github.com/P-H-C/phc-winner-argon2
  passwordEncryptorMapBinder.addBinding("example-argon2id").to(ExampleArgon2idPasswordEncryptor.class);
+
+ // PBDKF2HMACSHA256 with Keylength 512, useful for keycloak
+ passwordEncryptorMapBinder.addBinding("example-keycloak").to(ExamplePBDKF2HMACSHA256Keylength512PasswordHasher.class);
  }
 }