[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/base.h

@@ -0,0 +1,51 @@
+#pragma once
+
+#include "../types.h"
+
+typedef struct SubGhzProtocolDecoderBase SubGhzProtocolDecoderBase;
+
+typedef void (
+    *SubGhzProtocolDecoderBaseRxCallback)(SubGhzProtocolDecoderBase* instance, void* context);
+
+typedef void (
+    *SubGhzProtocolDecoderBaseSerialize)(SubGhzProtocolDecoderBase* decoder_base, string_t output);
+
+struct SubGhzProtocolDecoderBase {
+    // Decoder general section
+    const SubGhzProtocol* protocol;
+
+    // Callback section
+    SubGhzProtocolDecoderBaseRxCallback callback;
+    void* context;
+};
+
+void subghz_protocol_decoder_base_set_decoder_callback(
+    SubGhzProtocolDecoderBase* decoder_base,
+    SubGhzProtocolDecoderBaseRxCallback callback,
+    void* context);
+
+bool subghz_protocol_decoder_base_get_string(
+    SubGhzProtocolDecoderBase* decoder_base,
+    string_t output);
+
+bool subghz_protocol_decoder_base_serialize(
+    SubGhzProtocolDecoderBase* decoder_base,
+    FlipperFormat* flipper_format,
+    uint32_t frequency,
+    FuriHalSubGhzPreset preset);
+
+bool subghz_protocol_decoder_base_deserialize(
+    SubGhzProtocolDecoderBase* decoder_base,
+    FlipperFormat* flipper_format);
+
+uint8_t subghz_protocol_decoder_base_get_hash_data(SubGhzProtocolDecoderBase* decoder_base);
+
+// Encoder Base
+typedef struct SubGhzProtocolEncoderBase SubGhzProtocolEncoderBase;
+
+struct SubGhzProtocolEncoderBase {
+    // Decoder general section
+    const SubGhzProtocol* protocol;
+
+    // Callback section
+};