It's a major reorganization.

In order to add FIDO2 support, we need to reorganize some USB/CCID calls to specific area (named driver).
Thus, pico-hsm-sdk has two drivers:
- CCID driver implements APDU over USB/CCID ISO-7816 standard procedures.
- HID driver implements APDU over HID.

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

src/rng/hwrng.c

@@ -1,5 +1,5 @@
 /*
- * This file is part of the Pico CCID distribution (https://github.com/polhenarejos/pico-ccid).
+ * This file is part of the Pico HSM SDK distribution (https://github.com/polhenarejos/pico-hsm-sdk).
  * Copyright (c) 2022 Pol Henarejos.
  *
  * This program is free software: you can redistribute it and/or modify
@@ -15,15 +15,12 @@
  * along with this program. If not, see <http://www.gnu.org/licenses/>.
  */
 
-//Part of the code is taken from GnuK (GPLv3)
-
-
 #include <stdint.h>
 #include <string.h>
 #include <stdio.h>
 #include "pico/stdlib.h"
 
-#include "neug.h"
+#include "hwrng.h"
 #include "hardware/structs/rosc.h"
 #include "hardware/gpio.h"
 #include "hardware/adc.h"

src/rng/hwrng.h

@@ -1,5 +1,5 @@
 /*
- * This file is part of the Pico CCID distribution (https://github.com/polhenarejos/pico-ccid).
+ * This file is part of the Pico HSM SDK distribution (https://github.com/polhenarejos/pico-hsm-sdk).
  * Copyright (c) 2022 Pol Henarejos.
  *
  * This program is free software: you can redistribute it and/or modify

src/rng/random.c

@@ -1,5 +1,5 @@
 /*
- * This file is part of the Pico CCID distribution (https://github.com/polhenarejos/pico-ccid).
+ * This file is part of the Pico HSM SDK distribution (https://github.com/polhenarejos/pico-hsm-sdk).
  * Copyright (c) 2022 Pol Henarejos.
  *
  * This program is free software: you can redistribute it and/or modify
@@ -19,7 +19,7 @@
 #include <stdint.h>
 #include <string.h>
 
-#include "neug.h"
+#include "hwrng.h"
 
 #define RANDOM_BYTES_LENGTH 32
 static uint32_t random_word[RANDOM_BYTES_LENGTH/sizeof (uint32_t)];

src/rng/random.h

@@ -1,5 +1,5 @@
 /*
- * This file is part of the Pico CCID distribution (https://github.com/polhenarejos/pico-ccid).
+ * This file is part of the Pico HSM SDK distribution (https://github.com/polhenarejos/pico-hsm-sdk).
  * Copyright (c) 2022 Pol Henarejos.
  *
  * This program is free software: you can redistribute it and/or modify