[FL-2934] WS: add protocol Acurite 592TXR (#1916)

* WS: add protocol Acurite 592TXR
* WS: fix decoder Acurite_592TXR
* SubGhz: proper types in math

Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>

lib/subghz/blocks/math.c

@@ -216,4 +216,34 @@ uint16_t subghz_protocol_blocks_lfsr_digest16(
         }
     }
     return sum;
+}
+
+uint8_t subghz_protocol_blocks_add_bytes(uint8_t const message[], size_t num_bytes) {
+    int result = 0;
+    for(size_t i = 0; i < num_bytes; ++i) {
+        result += message[i];
+    }
+    return (uint8_t)result;
+}
+
+int subghz_protocol_blocks_parity8(uint8_t byte) {
+    byte ^= byte >> 4;
+    byte &= 0xf;
+    return (0x6996 >> byte) & 1;
+}
+
+int subghz_protocol_blocks_parity_bytes(uint8_t const message[], size_t num_bytes) {
+    int result = 0;
+    for(size_t i = 0; i < num_bytes; ++i) {
+        result ^= subghz_protocol_blocks_parity8(message[i]);
+    }
+    return result;
+}
+
+uint8_t subghz_protocol_blocks_xor_bytes(uint8_t const message[], size_t num_bytes) {
+    uint8_t result = 0;
+    for(size_t i = 0; i < num_bytes; ++i) {
+        result ^= message[i];
+    }
+    return result;
 }