Stubbed out the text drawing functions on Windows too.

windows/drawtext.cpp

@@ -107,3 +107,20 @@ void uiDrawFreeFontFamilies(uiDrawFontFamilies *ff)
 	ff->fonts->Release();
 	uiFree(ff);
 }
+
+double uiDrawTextSizeToPoints(double textSize)
+{
+	// TODO
+	return 0;
+}
+
+double uiDrawPointsToTextSize(double points)
+{
+	// TODO
+	return 0;
+}
+
+void uiDrawText(uiDrawContext *c, double x, double y, const char *text, uiDrawTextStyle *style)
+{
+	// TODO
+}