Read arbitrary data from the file system (#374)

Co-authored-by: krut_ni <nils.kruthoff@dlr.de>
Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

runtime/src/runtime_api.rs

@@ -77,6 +77,7 @@ pub fn start_runtime_api() {
                 crate::secret::delete_secret,
                 crate::environment::get_data_directory,
                 crate::environment::get_config_directory,
+                crate::file_data::extract_data,
                 crate::log::get_log_paths,
             ])
             .ignite().await.unwrap()