[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/math.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+
+#define bit_read(value, bit) (((value) >> (bit)) & 0x01)
+#define bit_set(value, bit) ((value) |= (1UL << (bit)))
+#define bit_clear(value, bit) ((value) &= ~(1UL << (bit)))
+#define bit_write(value, bit, bitvalue) (bitvalue ? bit_set(value, bit) : bit_clear(value, bit))
+#define DURATION_DIFF(x, y) ((x < y) ? (y - x) : (x - y))
+
+uint64_t subghz_protocol_blocks_reverse_key(uint64_t key, uint8_t count_bit);