packet-simulcrypt.c: various

- Add/use several extended value strings;
- Add (what appear to be) 3 missing entries to a value-string array;
- Add editor mode-lines and adjust whitespace as needed.

Change-Id: Ia3bea3c52130ae07d1f0c271659fb010abecb179
Reviewed-on: https://code.wireshark.org/review/4389
Reviewed-by: Bill Meier <wmeier@newsguy.com>