NFC refactoring (#3050)

"A long time ago in a galaxy far, far away...." we started NFC subsystem refactoring.

Starring:

- @gornekich - NFC refactoring project lead, architect, senior developer
- @gsurkov - architect, senior developer
- @RebornedBrain - senior developer

Supporting roles:

- @skotopes, @DrZlo13, @hedger - general architecture advisors, code review
- @Astrrra, @doomwastaken, @Hellitron, @ImagineVagon333 - quality assurance

Special thanks:

@bettse, @pcunning, @nxv, @noproto, @AloneLiberty and everyone else who has been helping us all this time and contributing valuable knowledges, ideas and source code.

lib/nfc/protocols/mf_classic/crypto1.h

@@ -0,0 +1,44 @@
+#pragma once
+
+#include <toolbox/bit_buffer.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+    uint32_t odd;
+    uint32_t even;
+} Crypto1;
+
+Crypto1* crypto1_alloc();
+
+void crypto1_free(Crypto1* instance);
+
+void crypto1_reset(Crypto1* crypto1);
+
+void crypto1_init(Crypto1* crypto1, uint64_t key);
+
+uint8_t crypto1_bit(Crypto1* crypto1, uint8_t in, int is_encrypted);
+
+uint8_t crypto1_byte(Crypto1* crypto1, uint8_t in, int is_encrypted);
+
+uint32_t crypto1_word(Crypto1* crypto1, uint32_t in, int is_encrypted);
+
+void crypto1_decrypt(Crypto1* crypto, const BitBuffer* buff, BitBuffer* out);
+
+void crypto1_encrypt(Crypto1* crypto, uint8_t* keystream, const BitBuffer* buff, BitBuffer* out);
+
+void crypto1_encrypt_reader_nonce(
+    Crypto1* crypto,
+    uint64_t key,
+    uint32_t cuid,
+    uint8_t* nt,
+    uint8_t* nr,
+    BitBuffer* out);
+
+uint32_t prng_successor(uint32_t x, uint32_t n);
+
+#ifdef __cplusplus
+}
+#endif