Create Location API should accept the same parameters for state_province and country as create contact API

Currently you can pass state_province and country to crm_create_contact like this:

'state_province'=> 'CA',
'country' => 'US',

However, crm_create_location only works with the Foreign Keys:
'state_province_id'=> 1004,
'country_id' => 1228

We need to modify crm_create_location so it can accept the key values (same as create_contact).
You can test this w/ test/CRM/api/CRM778.php.