Add custom outputs to door with buttons

[PikaChokeMe]

What this PR does is adds an activate_out wiring output to doors with buttons, windowed doors with buttons, and hatches with buttons. It also allows users to suppress the default door open/close action that normally accompanies these integrated button/door assemblies. The idea is that this allows doors and hatches with integrated buttons to act as triggers for downstream logic circuits which may enable more advanced opening and closing functionality. This also has the added benefit that when AI goes to activate doors and hatches with buttons via waypoints to traverse thresholds it also triggers these custom logic circuits and #JustWorks.

For example, with this change merged and the following XML, both players and AI just "clicking" on a door or hatch with buttons can now trigger complex door activation logic:

<Item identifier="doorwbuttons" … >
  …
  <ConnectionPanel … >
    …
    <output name="activate_out" displayname="connection.activateout" />
  </ConnectionPanel>
</Item>

<Item identifier="windoweddoorwbuttons" … >
  …
  <ConnectionPanel … >
    …
    <output name="activate_out" displayname="connection.activateout" />
  </ConnectionPanel>
</Item>

<Item identifier="hatchwbuttons" … >
    …
  <ConnectionPanel … >
    …
    <output name="activate_out" displayname="connection.activateout" />
  </ConnectionPanel>
</Item>

<connection.activateout>activate_out</connection.activateout>

AI waypoints in action with telescoping hatch logic:

barotrauma.e.2021.06.27.-.16.05.05.11.DVR_5.mp4

Hatch telescoping logic (suppressed default behaviour with complex opening logic) and door powered lightswitch raves (default door opening actions):

barotrauma.e.2021.06.27.-.16.05.05.11.DVR_4.mp4

[ignomen]

I strongly endorse this.

[PikaChokeMe]

I strongly endorse this.

I was actually amazed at how well it worked with the AI. It makes all custom door logic just kind of work :O

[mygamingaccount]

With this sort of change you could turn "Button door" and "Custom door" into legacy items and have a "Door" (and hatch) instead.

[mygamingaccount]

"Suppress default action" is unnecessarily vague (what's the default action?)
I suggest changing the wording to "Toggles when clicked" and have the setting be default on, doing the opposite of what the parameter does now.

[pantherpusher]

speedmerge

[Regalis11]

Thank you for the PR! Finally got around to looking into this.

I did a couple of changes (renaming the SuppressDefaultAction as mygamingaccount suggested) and hiding the property if the door doesn't have integrated buttons, and opened a PR in our private repository: https://github.com/Regalis11/Barotrauma-development/pull/4300