func FindCommand(name string) *Command {
	return commandMap[name]
}
FindCommand finds command handler for a command string
package cmd
import (
	"fmt"
)
type Command struct {
	Name            string
	Help            string
	SubCommands     map[string][]string
	CustomCompleter func(input string, position int)
	Handle          func(*Request) error
}
var commands []*Command
var commandMap map[string]*Command