Add vendor (steam)

vendor/github.com/Philipp15b/go-steam/trading_events.go

@@ -0,0 +1,29 @@
+package steam
+
+import (
+	. "github.com/Philipp15b/go-steam/protocol/steamlang"
+	. "github.com/Philipp15b/go-steam/steamid"
+)
+
+type TradeProposedEvent struct {
+	RequestId TradeRequestId
+	Other     SteamId `json:",string"`
+}
+
+type TradeResultEvent struct {
+	RequestId TradeRequestId
+	Response  EEconTradeResponse
+	Other     SteamId `json:",string"`
+	// Number of days Steam Guard is required to have been active
+	NumDaysSteamGuardRequired uint32
+	// Number of days a new device cannot trade for.
+	NumDaysNewDeviceCooldown uint32
+	// Default number of days one cannot trade after a password reset.
+	DefaultNumDaysPasswordResetProbation uint32
+	// See above.
+	NumDaysPasswordResetProbation uint32
+}
+
+type TradeSessionStartEvent struct {
+	Other SteamId `json:",string"`
+}