Allow calling votes as spectator in the client side

[ChillerDragon]

Currently the client does not allow calling votes when being in the spectator team. Even if the server would allow it. And the server has no way of allowing it. Unless rcon authenticated the client will always remove the vote button in the menu if it is a spectator.

teeworlds/src/game/client/components/menus_ingame.cpp

Lines 665 to 673 in a1911c8

	if(m_pClient->m_pVoting->IsVoting())
	pNotification = Localize("Wait for current vote to end before calling a new one.");
	else if(m_pClient->m_pVoting->CallvoteBlockTime() != 0)
	{
	str_format(aBuf, sizeof(aBuf), Localize("You must wait %d seconds before making another vote"), m_pClient->m_pVoting->CallvoteBlockTime());
	pNotification = aBuf;
	}
	else if(!Authed && m_pClient->m_aClients[m_pClient->m_LocalClientID].m_Team == TEAM_SPECTATORS)
	pNotification = Localize("Spectators aren't allowed to start a vote.");

In my opinion also vanilla should have a setting to allow and disallow voting as spectator in the settings. But for sure there should be an option for custom servers to make use of votes for spectators.

[ChillerDragon]

Okay so there is the dead spec mode which can be used as a work around. But my argument stands for plain spectators. Polluting the scoreboard with dead tees to allow spectators to start votes is not optimal.