title: in which file AuthComponent::password method present
body: <p>i wanted to find out the file where AuthComponent::password method is present.
  i have searched almost all files of vendors/cakephp folder, especially cakephp/src/Auth folder. i only found one method named password in DigestAuthenticate.php file but i echoed some text there to make sure but no output came. also i appended some text in return value but no effect.
  so i confused in which file that method present.</p>
  
  <p>can anyone please tell me in which file AuthComponent::password method present?
  or which method of anyother file is called in the background when AuthComponent::password is called?</p>