Add an attribute to set vertical alignment for label text

[vix]

If the label area is fixed size (i.e. option "Size to text" disabled) and is higher than the font height, it would be useful to have an attribute to set the text vertical alignment:

• to the top
• centered
• to the bottom

Now the text can be justified only horizontally (left justified, centered, right justified)

[Wolfgang]

I would also like to see this attribute for a regular text message.

For various reasons I use text messages instead of labels so the vertical alignment of text within a text message would be welcome, too.