Function safe_app::ffi::logging::app_config_dir_path

#[no_mangle]
pub unsafe extern "C" fn app_config_dir_path(
    user_data: *mut c_void, 
    o_cb: extern "C" fn(user_data: *mut c_void, result: *const FfiResult, log_path: *const c_char)
)

Returns the path at which the the configuration files are expected.