Adds @who4 command (excludes vendors from @who list).

[bWolfie]

Pull Request Prelude

• I have followed proper Hercules code styling.
• I have read and understood the contribution guidelines before making this PR.
• I am aware that this PR will be closed if the above-mentioned criteria are not fulfilled.

Changes Proposed

Adds the @who4 command. Same as regular @who, but excludes vendors from the list.

Affected Branches:

• master
• stable

Issues addressed:

N/A

Known Issues and TODO List

N/A

[HerculesWSAPI]

This change is 

[dastgirp]

Wouldn't it be better if we have one command and add first argument for deciding these things?

[bWolfie]

You mean redesigning command?

[Emistry]

ex:enable criteria to exclude from the list.
btw, instead the exclude vendors... perhaps make it exclude player who are afk, that way we could pretty much auto excluded all vendors by default

[Cyanide0210]

Yeah we could add arguments like "map" and things like that, which actually can replace @whomap also

[4144]

probably better convert all this @whoN into one @who command with bit field parameter for include or exclude each type of players