add findmy to system apps [ci skip]

autoload by Willy-JL

applications/system/find_my_flipper/helpers/base64.h

@@ -0,0 +1,21 @@
+/*
+ * Base64 encoding/decoding (RFC1341)
+ * Copyright (c) 2005, Jouni Malinen <j@w1.fi>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+// https://web.mit.edu/freebsd/head/contrib/wpa/src/utils/base64.h
+
+#ifndef BASE64_H
+#define BASE64_H
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+
+unsigned char* base64_encode(const unsigned char* src, size_t len, size_t* out_len);
+unsigned char* base64_decode(const unsigned char* src, size_t len, size_t* out_len);
+
+#endif /* BASE64_H */