[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/blocks/const.h

@@ -0,0 +1,12 @@
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+
+typedef struct {
+    const uint16_t te_long;
+    const uint16_t te_short;
+    const uint16_t te_delta;
+    const uint8_t min_count_bit_for_found;
+} SubGhzBlockConst;