Split the loading of private key so we can load it using the constructur if we have a file, or later if we have it as a string.
Split the loading of private key so we can load it using the constructur if we have a file, or later if we have it as a string.

trustly/trustly-client-php,makasim/trustly-client-php,makasim/trustly-client-php,trustly/trustly-client-php,trustly/trustly-client-php,trustly/trustly-client-php,makasim/trustly-client-php,makasim/trustly-client-php