* [Commands] Add #show special_abilities
# Notes
- Allows operators to see what special abilities an NPC has.
- Move special ability values to `common/emu_constants.h`.
- Add `EQ::constants::GetSpecialAbilityMap()` and `EQ::constants::GetSpecialAbilityName()`.
- Add `NPC::DescribeSpecialAbilities(client)` to describe special abilities to a specified client.
# Images
* Update npc.cpp
* [Cleanup] Consolidate #show commands into a singular #show command
# Notes
- All `#show` commands like `#showbuffs` are now subcommands of `#show`.
- All aliases like `#showbuffs` still function.
* Push up progress.
* Final push.
* Cleanup.
* Update ip_lookup.cpp
* emotes not emote
* Cleanup
* Update servertalk.h
* Update show.cpp
* Fix
* Final push.
* #aggro
* #who
