Implement `direction` property (#906)
1<test name="gridflex_kitchen_sink_minimise__content_box_rtl" use-rounding="true">
2 <viewport width="max-content" height="max-content"/>
3 <input>
4 <div box-sizing="content-box" direction="rtl">
5 <div display="grid" box-sizing="content-box" direction="rtl" grid-template-rows="20px" grid-template-columns="1fr 1fr">
6 <div box-sizing="content-box" direction="rtl" width="50px"/>
7 <div box-sizing="content-box" direction="rtl"/>
8 </div>
9 </div>
10 </input>
11 <expectations>
12 <node x="0" y="0" width="100" height="20">
13 <node x="0" y="0" width="100" height="20">
14 <node x="50" y="0" width="50" height="20"/>
15 <node x="0" y="0" width="50" height="20"/>
16 </node>
17 </node>
18 </expectations>
19</test>