[FL-2230] SubGhz: protocol API refactoring (#969)

* SubGhz: protocols library refactoring
* SubGhz: new architecture and refactoring
* SubGhz: simplify protocol structure, remove unused types
* SubGhz: rename Subghz to SubGhz
* SubGhz: add environment concept

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
Co-authored-by: DrZlo13 <who.just.the.doctor@gmail.com>

lib/subghz/protocols/came.h

@@ -0,0 +1,63 @@
+#pragma once
+
+#include "base.h"
+
+#define SUBGHZ_PROTOCOL_CAME_NAME "CAME"
+
+typedef struct SubGhzProtocolDecoderCame SubGhzProtocolDecoderCame;
+typedef struct SubGhzProtocolEncoderCame SubGhzProtocolEncoderCame;
+
+extern const SubGhzProtocolDecoder subghz_protocol_came_decoder;
+extern const SubGhzProtocolEncoder subghz_protocol_came_encoder;
+extern const SubGhzProtocol subghz_protocol_came;
+
+void* subghz_protocol_encoder_came_alloc(SubGhzEnvironment* environment);
+
+void subghz_protocol_encoder_came_free(void* context);
+
+bool subghz_protocol_encoder_came_deserialize(void* context, FlipperFormat* flipper_format);
+
+void subghz_protocol_encoder_came_stop(void* context);
+
+LevelDuration subghz_protocol_encoder_came_yield(void* context);
+
+/** Allocate SubGhzProtocolCame
+ * 
+ * @return SubGhzProtocolCame* 
+ */
+void* subghz_protocol_decoder_came_alloc(SubGhzEnvironment* environment);
+
+/** Free SubGhzProtocolCame
+ * 
+ * @param instance 
+ */
+void subghz_protocol_decoder_came_free(void* context);
+
+/** Reset internal state
+ * @param instance - SubGhzProtocolCame instance
+ */
+void subghz_protocol_decoder_came_reset(void* context);
+
+/** Parse accepted duration
+ * 
+ * @param instance - SubGhzProtocolCame instance
+ * @param data - LevelDuration level_duration
+ */
+void subghz_protocol_decoder_came_feed(void* context, bool level, uint32_t duration);
+
+uint8_t subghz_protocol_decoder_came_get_hash_data(void* context);
+
+/** Outputting information from the parser
+ * 
+ * @param instance - SubGhzProtocolCame* instance
+ * @param output   - output string
+ */
+bool subghz_protocol_decoder_came_serialize(
+    void* context,
+    FlipperFormat* flipper_format,
+    uint32_t frequency,
+    FuriHalSubGhzPreset preset);
+
+bool subghz_protocol_decoder_came_deserialize(void* context, FlipperFormat* flipper_format);
+
+void subghz_protocol_decoder_came_get_string(void* context, string_t output);