Adjusted form_helper for checkboxes and radios

To populate the screen properly, I will be passing the value stored in
the database as the 3rd parameter of the form_checkbox() and
form_radio()  functions in form_helper.php.  I want to check the value
of this 3rd parameter and make sure checkboxes and appropriate radio
buttons are selected.

Also fixed times not saving automatically to database in
CIX_Controller.php

Now checking the id field instead of the $sample variable to display the
correct set of buttons.

Added values for the radio button and checkbox fields in easy_crud.php

Added the $id in the action() method in samples.php