Within `plugins/epan/`, change calls of `create_dissector_handle()` to
instead call `register_dissector()` with a name for the dissector.
This change allows affected dissectors to be findable by calls to
`find_dissector()`. In turn, this opens up more command-line use for
these protocols, including fuzzshark and rawshark, as well as lua use
via `Dissector.get()`.
Most changes are to sub-dissectors of the wimax plugin. For these I kept
the naming convention for dissector names used by e.g.
`wimax/msg_aas_beam.c` even though it's unwieldy.
Some of the plugins did use `register_dissector()` but with `-1` as the
protocol ID argument. I changed those to pass the actual protocol ID.
Partially addresses #5612
55db118c0f