Support for Hebrew / RTL

[vraja-pro]

Following the discussion in stack overflow, can you please add this code?

To fix hebrew letters direction add code to src/Renderer/Text.php before $this->_canvas->text (line 73).
I added a PR #3420

 if ( strtolower( $style -> direction ) == 'rtl' && preg_match( "/\p{Hebrew}/u", $text ) ){

    preg_match_all('/./us', $text, $ar);

    // reverse the whole line
    $text = join('',array_reverse($ar[0]));

    // flip english back to ltr
    $words = explode( ' ', $text );
    foreach( $words as $i => $word ):
        if( !preg_match( "/\p{Hebrew}/u", $word ) ):
            $words[$i] = implode( '', array_reverse( str_split( $word ) ) );
        endif;
        if( $word === "–"){
            $words[$i] = "-";
        }
    endforeach;

    $text = implode( ' ', $words );
    }

[bsweeney]

The PR is sufficient. Also, watch #2619 for updates on script support for various languages.