Add includeChats property

[CodeRedDev]

This adds a includeChats property to ChatCommands.

This makes limiting commands to one specific channel much easier and cleaner in the configuration.

I saw that there are more modules with the ignoreChats property and if the new includeChats property is desired, I will make efforts to implement it for those other modules too.

[sergelouie6]

I was about to do another PR which might be in conflict to yours, maybe you can add it here too instead?

Add the ability for "commands" option to accept an array or just a single string.

  {
      "command": [
          "claim",
          "claimrule"
      ],
      "type": "broadcast",
      "response": "To make a valid claim, name your squad after the vehicle you want to claim.\nIf there are multiple vehicles of the same type, the first squad to claim it gets priority.",
      "ignoreChats": [
          "ChatAll",
          "ChatTeam",
          "ChatSquad"
      ]
  },

  async mount() {
    for (const command of this.options.commands) {
      const commands = Array.isArray(command.command) ? command.command : [command.command];
      for (const cmd of commands) {
        this.server.on(`CHAT_COMMAND:${cmd.toLowerCase()}`, async (data) => {
          if (command.ignoreChats.includes(data.chat)) return;
  
          if (command.type === 'broadcast') {
            await this.server.rcon.broadcast(command.response);
          } else if (command.type === 'warn') {
            await this.server.rcon.warn(data.player.steamID, command.response);
          }
        });
      }
    }
  }

[CodeRedDev]

@sergelouie6 although it's a nice feature I doubt that they should be mixed in one PR