Greenworks v0.19.0 for NW.js v0.94.0

• Update to Steamworks SDK 1.61
• Greenworks compiled for NW.js v0.94.0
• New lobby and p2p APIs, #335 (thanks to @Hocti):
  • greenworks.requestLobbyList()
  • greenworks.getLobbyMemberLimit(steamIDLobby: string): number
  • greenworks.setLobbyMemberLimit(steamIDLobby: string,limit: number): boolean
  • greenworks.getLobbyMemberData(steamIDLobby: string, steamIDMember: string, pchKey: string): string
  • greenworks.setLobbyMemberData(steamIDLobby: string, pchKey: string, pchValue: string): void
  • greenworks.getLobbyDataCount(steamIDLobby: string): number
  • greenworks.getLobbyDataByIndex(steamIDLobby: string, index:number): {key: string, value: string}
  • greenworks.sendLobbyChatMsg(steamIDLobby: string,data: Buffer): boolean
  • greenworks.getLobbyChatEntry(steamIDLobby: string,chatID: number): {steamIDUser: string, data: Buffer,chatEntryType: eChatEntryType}
  • greenworks.sendP2PPacket(steamId: string, sendType: eP2PSendType, data: Buffer,nChannel:number): boolean
  • greenworks.isP2PPacketAvailable(nChannel:number): number
  • greenworks.readP2PPacket(size: number,nChannel:number):{data: Buffer,steamIDRemote: string}
  • greenworks.acceptP2PSessionWithUser(steamId: string): void
  • greenworks.getP2PSessionState(steamIDUser: string): {result:boolean,connectionState:Object}
  • greenworks.closeP2PSessionWithUser(steamIDUser: string): boolean
  • greenworks.closeP2PChannelWithUser(steamIDUser: string, nChannel: number): boolean
  • greenworks.isBehindNAT():boolean
• New events:
  • lobby-match-list
  • lobby-chat-update
  • lobby-chat-msg
  • p2p-session-request
  • p2p-session-connect-fail