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/rng/hwrng.h

@@ -21,7 +21,9 @@
 #define NEUG_PRE_LOOP 32
 
 #include <stdlib.h>
+#ifndef ENABLE_EMULATION
 #include "pico/stdlib.h"
+#endif
 
 void neug_init(uint32_t *buf, uint8_t size);
 uint32_t neug_get();