Add natives to get client ip and connect password

The hltv server doesn't provide a nice IPlayerInfo interface to get
stuff. Have to grab it and hold on to it while we can!

hltvclientwrapper.cpp

@@ -0,0 +1,69 @@
+#include "hltvclientwrapper.h"
+
+HLTVClientWrapper::HLTVClientWrapper()
+{
+	m_Client = nullptr;
+}
+
+void HLTVClientWrapper::Initialize(const char *ip, const char *password, IClient *client)
+{
+	m_Ip = ip;
+	m_Password = password;
+	m_Client = client;
+}
+
+const char *HLTVClientWrapper::Name()
+{
+	return m_Client->GetClientName();
+}
+
+const char *HLTVClientWrapper::Ip()
+{
+	return m_Ip.chars();
+}
+
+const char *HLTVClientWrapper::Password()
+{
+	return m_Password.chars();
+}
+
+bool HLTVClientWrapper::IsConnected()
+{
+	return m_Client && m_Client->IsConnected();
+}
+
+IClient *HLTVClientWrapper::BaseClient()
+{
+	return m_Client;
+}
+
+void HLTVClientWrapper::Kick(const char *reason)
+{
+	// Go this route due to different IClient::Disconnect signatures in games..
+	m_Client->GetServer()->DisconnectClient(m_Client, reason);
+}
+
+HLTVClientWrapper *HLTVClientManager::GetClient(int index)
+{
+	// Grow the vector with null pointers
+	// There might have been clients with lower indexes before we were loaded.
+	if (m_Clients.length() < (size_t)index)
+	{
+		int start = m_Clients.length();
+		m_Clients.resize(index);
+		for (int i = start; i < index; i++)
+		{
+			m_Clients[i] = nullptr;
+		}
+	}
+
+	if (!m_Clients[index - 1])
+	{
+		m_Clients[index - 1] = new HLTVClientWrapper();
+	}
+
+	return m_Clients[index - 1];
+}
+
+// FIXME: ClientManager instance for each hltvserver instance in csgo!
+HLTVClientManager g_HLTVClientManager;