Annotation based command API

@Command

The command that a class handles(spaces not supported)

@DefaultHandler

The method that should handle a command by default

@Subcommand

A method that contains a sub command(spaces are supported)

@Description

The description of a (sub)command

@Usage

The usage of a (sub)command)

@Exhaustive

If this is put on a string parameter, it will pass the rest of the input into this variable

@DecimalClamp

Clamps a variable within a decimal range

@IntClamp

Clamps a variable within an int range

@PreciseClamp

Clamps a variable within a decimal range, given as a string

@Length

Validates the length of a string

@Match

Validates a string matches a regex

@Permission

Require a permission

@ConsoleOnly

Only console can execute command

@PlayerOnly

Only a player can execute this command