[LZMA] Init range decoder's code with only one byte reader call

Author: tsolomko

Sources/LZMA/LZMARangeDecoder.swift

@@ -26,9 +26,7 @@ struct LZMARangeDecoder {
         self.byteReader = byteReader
 
         let byte = self.byteReader.byte()
-        for _ in 0..<4 {
-            self.code = (self.code << 8) | UInt32(self.byteReader.byte())
-        }
+        self.code = self.byteReader.uint32().byteSwapped
         guard byte == 0 && self.code != self.range
             else { throw LZMAError.rangeDecoderInitError }
     }