Imported more library files

Not compiling currently

autogen/sl_iostream_init_instances.h

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+#ifndef SL_IOSTREAM_INIT_INSTANCES_H
+#define SL_IOSTREAM_INIT_INSTANCES_H
+
+#include "sl_iostream.h"
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Initialize iostream component(s) / instance(s)
+void sl_iostream_init_instances(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // SL_IOSTREAM_INIT_INSTANCES_H