Add ettv protocol support to etlded - ettv client can connect to etlded server and players can join and view the game.
* ettv demo recording is possible
* add cvar sv_etltv_maxslaves "Number of ettv slaves allowed to connect." - ettv_sv_maxslaves equivalent
* add cvar sv_etltv_password "Password for ettv slaves. Must be set, or no slaves will be able to connect." - ettv_password equivalent
* add cvar g_etltv_flags "Bitflag 1 and 2. 1 = prevent slaves from being kicked. 2 = grant shoutcaster status to slaves."
* removed CVAR_SERVERINFO from g_fixedphysics, g_fixedphysicsfps, g_pronedelay, g_floodProtection, sv_floodProtect, sv_userInfoFloodProtect. Server info is too long and can crash ettv slave so until etltv is a thing it needs to get shorter.
Add legacy tvgame as replacment for etpro tvgame
* players can join ettv server connected to etlded server and watch and chat about the game
* most commands supported with some flood protection in place - up to change in the future still
* slave server support for 64 player server max right now (it's not realy an issue I believe but it's low priority for me)
* ignore/unignore commands not added right now but can turn on/off chat with /tvchat
* /players and /viewers commands
* /follow [id/name] or just classic legacy mod following (minus aim and follow whoever is under crosshair)
Add possibility for etlded to act as a client (ettv)
* add possibility for etlded to act as a client
* add command tv connect <ip> <masterpassword> (sv_etltv_maxslaves and sv_etltv_password must be set on master server)
* add command tv disconnect
* add command record <name> (optional) for recording tv demos
* add command stoprecord for stopping recording
* add command demo <name> for demo playback
* add command ff <seconds> command - fastforwarding demo (works similiar to timescale) stops on map_restart or can stop it with ff 0
* add cvar sv_etltv_autorecord <0/1> automatically record tv demos
* add cvar sv_etltv_autoplay <0/1> automatically play demos (only on specifically named demos from autorecording, fe. demo0001->demo0002 etc.)
* add cvar sv_etltv_clientname etltv client name
* demos are recorded into tvdemos folder with extension tv_84
* etpro tv demos are playable, best is to use ettv tvgame and start etlded with +fs_game etpro (put etpro tvgame into etpro mod folder). Need 2.6b client in order to watch
* slave server will not download missing files from master server, so need to make sure it has every pk3 it needs
* add cvar sv_etltv_delay <seconds> - setable only on etlded init, delays feed from master server
* add cvar sv_etltv_shownet - for network debugging
* disabled /scores command in tvgame because it can easily lag the server
* add parseEntitiesNum check to etlded for snapshot generation - current check doesn't seem to work at all (svs.nextSnapshotEntities), server will send on its own uncompressed snapshot if it detects that client will go over MAX_PARSE_ENTITIES
* add optional privatepassword argument to tv connect command. tv connect server masterpassword privatepassword
* add cvar sv_etltv_queue_ms (read only) for storing the amount of time till the game will start (backward compatible with etpro)
* various other general improvments to etltv
* players can connect to delayed slave server even before the game starts just like on ettv
* legacy cgame doesn't support higher than 64 sv_maxclients, notably CG_ParseFireteams uses cgs.maxclients which will break the game if it goes over 64.
* legacy ui doesn't support showing higher than 64 sv_maxclients servers in the browser, unless ui_serverBrowserSettings 4 is set on game init.
