[BUG] TextSizeUnit - @dimen

**Describe the bug**
TextSize should be permitted to use a dimen as well as `sp`

**To Reproduce**
```XML
<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="@string/some_string"
    android:textSize="@dimen/version_text_size" />
```

**Expected behavior**
This should not raise an error
