"Fast" Renderer: Rotated Text in margins is no longer placed correctly

While investigating #477 I noticed that the "fast" renderer does not correctly place rotated text in the margins.

I.e. apply this patch
```
Index: openhtmltopdf-examples/src/main/java/com/openhtmltopdf/freemarker/FreeMarkerGenerator.java
===================================================================
--- openhtmltopdf-examples/src/main/java/com/openhtmltopdf/freemarker/FreeMarkerGenerator.java (revision e59bb3652cdeee8bd5721b6913054c129bd3d0a3)
+++ openhtmltopdf-examples/src/main/java/com/openhtmltopdf/freemarker/FreeMarkerGenerator.java (date 1589386191821)
@@ -97,6 +97,7 @@
builder.useSVGDrawer(new BatikSVGDrawer());
builder.useMathMLDrawer(new MathMLDrawer());
builder.addDOMMutator(LaTeXDOMMutator.INSTANCE);
+ builder.useFastMode();
builder.usePDDocument(new PDDocument(MemoryUsageSetting.setupMixed(1000000)));
builder.useUriResolver(new DefaultUriResolver() {
@Override
```

and then run the FreeMarkerGeneratorTest. In the resulting PDF the rotated "FEATURED DOCUMENTATION" is placed within the page:
It should be correctly in the margin as with the old slow mode. Something broke here.