touchgfx::TextArea::setRotation() method

@fn void TextArea::setRotation(const TextRotation rotation = TEXT_ROTATE_0) Sets rotation of the text in the TextArea. Sets rotation of the text in the TextArea. The value TEXT_ROTATE_0 is the default for normal text. The value TEXT_ROTATE_90 will rotate the text clockwise, thus writing from the top of the display and down. Similarly TEXT_ROTATE_180 and TEXT_ROTATE_270 is further rotate 90 degrees clockwise.