gst/elements/: Print more buffer info in fakesink.

gst/elements/: Print more buffer info in fakesink.

Original commit message from CVS:
* gst/elements/gstfakesink.c: (gst_fakesink_chain):
* gst/elements/gstidentity.c: (gst_identity_init),
(gst_identity_chain):
Print more buffer info in fakesink.
Make identity output similar to fakesink.