neutrino: rework infoviewer

Make the infoviewer more "tuxbox-like". The default appearance should
only change marginally, but this provides infrastructure to:
*) disable the crypto icons (default if --disable-blinkenlights)
*) resize the infobar better to adapt to changed font sizes (not yet
 perfect, but better than before)
*) always vertically center the icons in the button bar (red green blue
 and AC3/16:9 etc)
The one thing visible immediately is that the infobar is always drawn
at the same height, regardless if the buttonbar is drawn below or not.
Originally I did it that way because a) the code was simpler and b) I
liked it better. If this is an issue, please report an I can change that.

I deliberately did not touch the display in file playback mode, this can
be done later once potential issues are shaken out.

Tis is a massive change, so I expect it to be not perfect. Please report
anything you find.

git-svn-id: file:///home/bas/coolstream_public_svn/THIRDPARTY/applications/neutrino-experimental@98 e54a6e83-5905-42d5-8d5c-058d10e6a962


Origin commit data
------------------
Branch: ni/coolstream
Commit: 115ba99f2e
Author: Stefan Seyfried <seife@tuxbox-git.slipkontur.de>
Date: 2009-12-20 (Sun, 20 Dec 2009)

Origin message was:
------------------
neutrino: rework infoviewer

Make the infoviewer more "tuxbox-like". The default appearance should
only change marginally, but this provides infrastructure to:
*) disable the crypto icons (default if --disable-blinkenlights)
*) resize the infobar better to adapt to changed font sizes (not yet
  perfect, but better than before)
*) always vertically center the icons in the button bar (red green blue
  and AC3/16:9 etc)
The one thing visible immediately is that the infobar is always drawn
at the same height, regardless if the buttonbar is drawn below or not.
Originally I did it that way because a) the code was simpler and b) I
liked it better. If this is an issue, please report an I can change that.

I deliberately did not touch the display in file playback mode, this can
be done later once potential issues are shaken out.

Tis is a massive change, so I expect it to be not perfect. Please report
anything you find.

git-svn-id: file:///home/bas/coolstream_public_svn/THIRDPARTY/applications/neutrino-experimental@98 e54a6e83-5905-42d5-8d5c-058d10e6a962


------------------
This commit was generated by Migit

src/system/settings.h

@@ -485,6 +485,9 @@ extern const neutrino_locale_t timing_setting_name[TIMING_SETTING_COUNT];
 #define RADIUS_MID      (g_settings.rounded_corners ? CORNER_RADIUS_MID : 0)
 #define RADIUS_SMALL    (g_settings.rounded_corners ? CORNER_RADIUS_SMALL : 0)
 
+// shadow
+#define SHADOW_OFFSET                   6
+
 /* end default values */
 
 struct SglobalInfo