Add (private) OTA libs

libs/ota-http-client/include/mgos_ota_http_client.h

@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2014-2016 Cesanta Software Limited
+ * All rights reserved
+ *
+ * An updater implementation that fetches FW from the given URL.
+ */
+
+#ifndef CS_MOS_LIBS_OTA_HTTP_CLIENT_SRC_MGOS_OTA_HTTP_CLIENT_H_
+#define CS_MOS_LIBS_OTA_HTTP_CLIENT_SRC_MGOS_OTA_HTTP_CLIENT_H_
+
+#include <stdbool.h>
+
+#include "mgos_updater_common.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+#if MGOS_ENABLE_UPDATER
+bool mgos_ota_http_client_init(void);
+
+void mgos_ota_http_start(struct update_context *ctx, const char *url);
+#endif
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* CS_MOS_LIBS_OTA_HTTP_CLIENT_SRC_MGOS_OTA_HTTP_CLIENT_H_ */