Add ReaderOptions for all readers (#338)

Instead of passing every single option down the chain

src/Spout/Reader/CSV/SheetIterator.php

@@ -20,23 +20,12 @@ class SheetIterator implements IteratorInterface
 
     /**
      * @param resource $filePointer
-     * @param string $fieldDelimiter Character that delimits fields
-     * @param string $fieldEnclosure Character that enclose fields
-     * @param string $endOfLineCharacter Character defining the end of a line
-     * @param string $encoding Encoding of the CSV file to be read
-     * @param bool $shouldPreserveEmptyRows Whether empty rows should be returned or skipped
+     * @param \Box\Spout\Reader\CSV\ReaderOptions $options
      * @param \Box\Spout\Common\Helper\GlobalFunctionsHelper $globalFunctionsHelper
      */
-    public function __construct(
-        $filePointer, $fieldDelimiter, $fieldEnclosure,
-        $endOfLineCharacter, $encoding, $shouldPreserveEmptyRows,
-        $globalFunctionsHelper)
+    public function __construct($filePointer, $options, $globalFunctionsHelper)
     {
-        $this->sheet = new Sheet(
-            $filePointer, $fieldDelimiter, $fieldEnclosure,
-            $endOfLineCharacter, $encoding, $shouldPreserveEmptyRows,
-            $globalFunctionsHelper
-        );
+        $this->sheet = new Sheet($filePointer, $options, $globalFunctionsHelper);
     }
 
     /**