Allow printing full packets in rtc_eventlog2text.
Allow printing full packets in rtc_eventlog2text.

Add command line option to print packet contents as hex in rtc_eventlog2text.

Bug: None
Change-Id: I690706cfba883ca2248332622f2c9133b7ddaf6a
Reviewed-on: https://webrtc-review.googlesource.com/20863
Commit-Queue: Björn Terelius <efeae16329b3cb4ac5daf80d4bfda3344c027db3@webrtc.org>
Reviewed-by: Elad Alon <9d66cb9c3c57b29e6fc055a4405dac15e20e28ee@webrtc.org>
Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#20590}
TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc,ShiftMediaProject/libilbc,TimothyGu/libilbc