Clean up keywords in commands

[Pacmens]

There is certain commands like the help command that allow for keywords to be used.

For example you can write $help all and get all the commands even though they might not be enabled or usable.

Currently this is handeled through hardcoded stringcompares in the method and is always set to the same value.

It would be better to have a way to set aliases on these as well as having a generic way to handle this inputs that will take this into consideration so it doesnt have to be hardcoded everywhere.

This would also require a command that can set these aliases per server in the commands it affects