Add jumbograms and proxy extension parsing to dump command

[attilakreiner]

Description

This commit adds these features to the dump command:

• support of IPv6 Jumbograms to accommodate large frames
• adds the worker index and streams buffer offset
• adds the ability to dissect proxy type extensions
• fixes a bug with DATA frames
• adds the option to install the wireshark plugin
• adds version info to the wireshark plugin

[attilakreiner]

I added the -e switch for consistency with the start command. The engine is not started so it can't print exceptions, ZillaMain doesn't print them either, so I am printing them here.