init_library_request with proxy

Contains the following data elements:

Name	Type	Description
`flags`	Unsigned Integer	A set of library flags.
`library_log`	void function	The C library uses this function to write log lines.
`backend_use_proxy` The `backend_use_proxy` parameter is used to pass the proxy for communication to the Adyen payments platform.	char	Used to pass the proxy for communication to the Adyen payments platform.
`environment`	ADYEnvironment	Defines the environment, where the system executes transactions, using ENVIRONMENT_TYPE values: ENVIRONMENT_LIVE or ENVIRONMENT_TEST.
`pos_name`	char	The symbolic POS name.
`app_name`	char	The Integrator/Merchant App name.
`app_id`	char	The Integrator/Merchant App ID.
`integrator_name`	char	The integrator name

The following data elements are used in cases where the library throws an exception which is not related to a PED, otherwise the data elements in ped_device_info will be used

Name	Type	Description
`throw_exception`	void function	Function called when an exception is thrown.
`echo_struct`	state pointer	A POS-defined struct that is echoed back in the callback. Use this to share a POS data struct between the call to the library and the callback from the library. You can add any pointer to `echo_struct`, and this will be returned on its specific callback.
`logArea`	Unsigned Integer	Defines the parts of the logs you can see. As default set this to 0xffff.