TODO: Add ability to change RCon port

[Bash-09]

The Rcon port that TF2 runs on can be changed by adding -port <whatever> to the TF2 launch parameters. The client will need a way to also change this if the user so wants.

This should work around the iTunes issue that's popped up with a few people, perhaps we should default to using a different port because some people don't realise they have iTunes or whatever other Apple software installed.

Necessary steps would be:

• Add a field to Settings for the rcon port
  • Make sure to set it to 27015 in the default
  • Maybe rename the existing port variable to api_port or something more specific
• Add a field to CommandManager for the rcon port, and add a new CommandManagerMessage to update it (will resemble SetRconPassword)
• Change CommandManager::try_connect() to use the stored port instead of the hardcoded one.
• Add a field to InternalPreferences for the API and update it in put_prefs (will have to send an IOManagerMessage like with the rcon password)

[c4thook]

nice anticheat guys 👍

[cinortaxeh]

Looks all good 👍

[sydenlous]

thank you for this awesome software :smiley:

[Bash-09]

Done in #94