Added a major refactoring to include Emulated interface.

It works in combination with virtualsmarcard module (vpcd). It properly installed, it creates a virtual reader that can be interfaced via PCSC+vcpd. At user app level, it has no difference of having a physical smart card.

At this moment, it only works emulating a CCID interface.

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>

src/fs/file.h

@@ -20,7 +20,12 @@
 #define _FILE_H_
 
 #include <stdlib.h>
+#ifndef ENABLE_EMULATION
 #include "pico/stdlib.h"
+#else
+#include <stdbool.h>
+#include <stdint.h>
+#endif
 
 #define FILE_TYPE_UNKNOWN       0x00
 #define FILE_TYPE_DF            0x04