[FL-1958] U2F prototype (#879)

* U2F implementation prototype
* U2F data encryption and store, user confirmation request
* remove debug prints
* fix notification bug in chrome
* split u2f_alloc into u2f_init and u2f_alloc
* typo fix, furi-hal-trng -> furi-hal-random
* rand/srand redefinition
* SubGhz: a little bit of Dante.
* u2f_data naming fix

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>

firmware/targets/furi-hal-include/furi-hal-crypto.h

@@ -32,6 +32,10 @@ typedef struct {
  */
 void furi_hal_crypto_init();
 
+bool furi_hal_crypto_verify_enclave(uint8_t* keys_nb, uint8_t* valid_keys_nb);
+
+bool furi_hal_crypto_verify_key(uint8_t key_slot);
+
 /** Store key in crypto storage
  *
  * @param      key   FuriHalCryptoKey to store. Only Master, Simple or