Complex text layout with libraqm

Text support has been extended to include complex text layout. This support includes:

1. Languages that require advanced layout, such as Arabic or Hebrew.

2. Text that mixes left-to-right and right-to-left languages.

   (2x.png, png)

   

3. Ligatures that combine several adjacent characters for improved legibility.

   (2x.png, png)

   

4. Combining multiple or double-width diacritics.

   (2x.png, png)

   

Note, all advanced features require corresponding font support, and may require additional fonts over the builtin DejaVu Sans.