feat: Add rfid feature and .gitignore file

apps/common/music/music_decrypt.h

@@ -0,0 +1,19 @@
+#ifndef __MUSIC_DECRYPT_H__
+#define __MUSIC_DECRYPT_H__
+
+#include "typedef.h"
+
+typedef struct _CIPHER {
+    u32 cipher_code;        ///>解密key
+    u8  cipher_enable;      ///>解密读使能
+} CIPHER;
+
+void cryptanalysis_buff(CIPHER *pcipher, void *buf, u32 faddr, u32 len);
+
+void cipher_check_decode_file(CIPHER *pcipher, void *file);
+
+void cipher_init(CIPHER *pcipher, u32 key);
+void cipher_close(CIPHER *pcipher);
+
+
+#endif //__MUSIC_DECRYPT_H__