DelegatingPasswordEncoder should provide additional argument to specify the encode algorithm

[hannah23280]

Currently, in DelegatingPasswordEncoder class

@Override
public String encode(CharSequence rawPassword) {
	return this.idPrefix + this.idForEncode + this.idSuffix + this.passwordEncoderForEncode.encode(rawPassword);
}

Enhancement: Add an overload method

@Override
public String encode(CharSequence rawPassword, String idForEncode) {
	return this.idPrefix + idForEncode + this.idSuffix + this.idToPasswordEncoder.get(idForEncode ).encode(rawPassword);
}

With this enhancement, we can now easily choose a different encoder when encoding a plain password.
This allows us to create the DelegatingPasswordEncoder using the simple api call PasswordEncoderFactories.createDelegatingPasswordEncoder() and yet able to use the created encoder to switch between different encoding algorithms whenever encoding is performed