Add initial steam support

matterbridge.toml.sample

@@ -656,6 +656,55 @@ RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
 #OPTIONAL (default false)
 ShowJoinPart=false
 
+###################################################################
+#steam section
+###################################################################
+[steam]
+#You can configure multiple servers "[steam.name]" or "[steam.name2]"
+#In this example we use [steam.gamechat]
+#REQUIRED
+
+[matrix.gamechat]
+#login/pass of your bot. 
+#Use a dedicated user for this and not your own account! 
+#REQUIRED 
+Login="yourlogin"
+Password="yourpass"
+
+#steamguard mail authcode (not the 2FA code)
+#OPTIONAL 
+Authcode="ABCE12"
+
+#Whether to prefix messages from other bridges to matrix with the sender's nick. 
+#Useful if username overrides for incoming webhooks isn't enabled on the 
+#matrix server. If you set PrefixMessagesWithNick to true, each message 
+#from bridge to matrix will by default be prefixed by the RemoteNickFormat setting. i
+#OPTIONAL (default false)
+PrefixMessagesWithNick=false
+
+#Nicks you want to ignore. 
+#Messages from those users will not be sent to other bridges.
+#OPTIONAL
+IgnoreNicks="spammer1 spammer2"
+
+#Messages you want to ignore. 
+#Messages matching these regexp will be ignored and not sent to other bridges
+#See https://regex-golang.appspot.com/assets/html/index.html for more regex info
+#OPTIONAL (example below ignores messages starting with ~~ or messages containing badword
+IgnoreMessages="^~~ badword"
+
+#RemoteNickFormat defines how remote users appear on this bridge 
+#The string "{NICK}" (case sensitive) will be replaced by the actual nick / username.
+#The string "{BRIDGE}" (case sensitive) will be replaced by the sending bridge
+#The string "{PROTOCOL}" (case sensitive) will be replaced by the protocol used by the bridge
+#OPTIONAL (default empty)
+RemoteNickFormat="[{PROTOCOL}] <{NICK}> "
+
+#Enable to show users joins/parts from other bridges 
+#Only works hiding/show messages from irc and mattermost bridge for now
+#OPTIONAL (default false)
+ShowJoinPart=false
+
 
 ###################################################################
 #API
@@ -744,6 +793,9 @@ enable=true
     #rocketchat - #channel (# is required (also needed for private channels!)
     #matrix     - #channel:server (eg #yourchannel:matrix.org) 
     #           - encrypted rooms are not supported in matrix
+    #steam      - chatid (a large number). 
+    #             The number in the URL when you click "enter chat room" in the browser
+    #                  
     #REQUIRED
     channel="#testing"