Add CURLOPT_CAINFO option because of Self-Signed cert
Add CURLOPT_CAINFO option because of Self-Signed cert


- according of documentation, CURLOPT_CAINFO option should point to the absolute path of a file holding one or more certificates to verify the peer with. In our case, we need it in order to verify Self-Signed certificate of the payment server, using a root certificate received from bank.

FIXME: I assume that $this->cert_path points to the file, containing the root certificate needed for verify Self-Signed certificate of bank.. It's also possible to have the root certificate in the separated .pem file, and use here full path of that file as argument, instead of $this->cert_path.

NOTE: If in the future bank changes Self-Signed certificate to Trusted one, then remove this line.
wearede/tbcpay-php