U+3030 should be rotated when vertical

According to UAX#50, U+3030 is `Tr`, which is defined in [Property Values](http://unicode.org/reports/tr50/#vo_values):

> Tu: Characters which are not just upright or sideways, but generally require a different glyph than in the code charts when used in vertical texts. In addition, as a fallback, the character can be displayed with the code chart glyph upright.
> Tr: Same as Tu except that, as a fallback, the character can be displayed with the code chart glyph rotated 90 degrees clockwise.

It is expected to have a vertical alternate glyph in the rotated form. The expected representative glyph is shown in the [Table 2. Glyph Changes for Vertical Orientation](http://unicode.org/reports/tr50/#table_2).