Add more detailed SUMMARY and DESCRIPTIONS to various graphics and
graphics related components. I've recently gotten question from users
what something is, or why it was needed.. this should go a long way toward
answering those questions.
Many of the descriptions were taken directly from the upstream location,
where one was not available the Debian packages were consulted for
information.
Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
