package/gst1-shark: new package

package/gst1-shark: new package

GstShark leverages GStreamers newest instrumentation subsystem by
installing a set of custom hooks to the trace points. A variety of
data analytics are extracted and presented to the user in a graphical,
friendly way.

https://developer.ridgerun.com/wiki/index.php?title=GstShark
https://github.com/RidgeRun/gst-shark

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: João Victor Oliveira <jv.oliveirag@gmail.com>
Cc: Adam Duskett <aduskett@gmail.com>
Cc: Igor Miranda <igorcmiranda3110@gmail.com>
[Thomas:
 - fix package prompt to be gtk1-shark in Config.in
 - license is LGPL-2.1+, not LGPL-2.1
 - add entry to DEVELOPERS file]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>