The UpRight property in DocumentFormat.OpenXml.Drawing.BodyProperties may be named incorrectly



**Description**

According to  21.1.2.1.1 bodyPr (Body Properties) in ECMA 376, we can find the `upright` means "Text Upright". And "Upright" is a word not two words. But we use `UpRight` as the property name.



**Observed**

The property named `UpRight` is in DocumentFormat.OpenXml.Drawing.BodyProperties.

**Expected**

The property name is "upright".
