Add Mastercode SubGHz Protocol (#3187)

* Add Mastercode SubGHz Protocol
* Add 2 valid raw files and cleanup code
* Add tests to the two Raw Files
* Remove extra test & delete comments
* Fixes pulse length and shows correct Key

Co-authored-by: FlipperZelebro <flipperzelebro [at] gmail.com>
Co-authored-by: あく <alleteam@gmail.com>

lib/subghz/protocols/mastercode.h

@@ -0,0 +1,109 @@
+#pragma once
+
+#include "base.h"
+
+#define SUBGHZ_PROTOCOL_MASTERCODE_NAME "Mastercode"
+
+typedef struct SubGhzProtocolDecoderMastercode SubGhzProtocolDecoderMastercode;
+typedef struct SubGhzProtocolEncoderMastercode SubGhzProtocolEncoderMastercode;
+
+extern const SubGhzProtocolDecoder subghz_protocol_mastercode_decoder;
+extern const SubGhzProtocolEncoder subghz_protocol_mastercode_encoder;
+extern const SubGhzProtocol subghz_protocol_mastercode;
+
+/**
+ * Allocate SubGhzProtocolEncoderMastercode.
+ * @param environment Pointer to a SubGhzEnvironment instance
+ * @return SubGhzProtocolEncoderMastercode* pointer to a SubGhzProtocolEncoderMastercode instance
+ */
+void* subghz_protocol_encoder_mastercode_alloc(SubGhzEnvironment* environment);
+
+/**
+ * Free SubGhzProtocolEncoderMastercode.
+ * @param context Pointer to a SubGhzProtocolEncoderMastercode instance
+ */
+void subghz_protocol_encoder_mastercode_free(void* context);
+
+/**
+ * Deserialize and generating an upload to send.
+ * @param context Pointer to a SubGhzProtocolEncoderMastercode instance
+ * @param flipper_format Pointer to a FlipperFormat instance
+ * @return status
+ */
+SubGhzProtocolStatus
+    subghz_protocol_encoder_mastercode_deserialize(void* context, FlipperFormat* flipper_format);
+
+/**
+ * Forced transmission stop.
+ * @param context Pointer to a SubGhzProtocolEncoderMastercode instance
+ */
+void subghz_protocol_encoder_mastercode_stop(void* context);
+
+/**
+ * Getting the level and duration of the upload to be loaded into DMA.
+ * @param context Pointer to a SubGhzProtocolEncoderMastercode instance
+ * @return LevelDuration 
+ */
+LevelDuration subghz_protocol_encoder_mastercode_yield(void* context);
+
+/**
+ * Allocate SubGhzProtocolDecoderMastercode.
+ * @param environment Pointer to a SubGhzEnvironment instance
+ * @return SubGhzProtocolDecoderMastercode* pointer to a SubGhzProtocolDecoderMastercode instance
+ */
+void* subghz_protocol_decoder_mastercode_alloc(SubGhzEnvironment* environment);
+
+/**
+ * Free SubGhzProtocolDecoderMastercode.
+ * @param context Pointer to a SubGhzProtocolDecoderMastercode instance
+ */
+void subghz_protocol_decoder_mastercode_free(void* context);
+
+/**
+ * Reset decoder SubGhzProtocolDecoderMastercode.
+ * @param context Pointer to a SubGhzProtocolDecoderMastercode instance
+ */
+void subghz_protocol_decoder_mastercode_reset(void* context);
+
+/**
+ * Parse a raw sequence of levels and durations received from the air.
+ * @param context Pointer to a SubGhzProtocolDecoderMastercode instance
+ * @param level Signal level true-high false-low
+ * @param duration Duration of this level in, us
+ */
+void subghz_protocol_decoder_mastercode_feed(void* context, bool level, uint32_t duration);
+
+/**
+ * Getting the hash sum of the last randomly received parcel.
+ * @param context Pointer to a SubGhzProtocolDecoderMastercode instance
+ * @return hash Hash sum
+ */
+uint8_t subghz_protocol_decoder_mastercode_get_hash_data(void* context);
+
+/**
+ * Serialize data SubGhzProtocolDecoderMastercode.
+ * @param context Pointer to a SubGhzProtocolDecoderMastercode instance
+ * @param flipper_format Pointer to a FlipperFormat instance
+ * @param preset The modulation on which the signal was received, SubGhzRadioPreset
+ * @return status
+ */
+SubGhzProtocolStatus subghz_protocol_decoder_mastercode_serialize(
+    void* context,
+    FlipperFormat* flipper_format,
+    SubGhzRadioPreset* preset);
+
+/**
+ * Deserialize data SubGhzProtocolDecoderMastercode.
+ * @param context Pointer to a SubGhzProtocolDecoderMastercode instance
+ * @param flipper_format Pointer to a FlipperFormat instance
+ * @return status
+ */
+SubGhzProtocolStatus
+    subghz_protocol_decoder_mastercode_deserialize(void* context, FlipperFormat* flipper_format);
+
+/**
+ * Getting a textual representation of the received data.
+ * @param context Pointer to a SubGhzProtocolDecoderMastercode instance
+ * @param output Resulting text
+ */
+void subghz_protocol_decoder_mastercode_get_string(void* context, FuriString* output);