Initial set of changes from reversed engineered l4d binaries

* Bumped IVEngineServer to version 022
 * Bumped ICvar to version 007
 * Added/Removed various functions to/from the following interfaces: IVEngineServer, ICvar, IServerGameDLL, IServerGameEnts, IServerGameClients, IFileSystem, IEngineSound, IEngineTrace, IClient, IConvar, and INetworkStringTableContainer
 * Added unknown extra int ptr param to IGameEventManager2::CreateEvent
 * Added GetDebugEventID to IGameEventListener2
 * Added two new members of CGlobalVars: serverCount and baseEdict
 * Added new functions to ConCommandBase and ConVar classes in tier1
 * Recompiled tier1 static library for Windows
 * Updated notes.txt to reflect the nature of this SDK

tier1/convar.cpp

@@ -241,6 +241,16 @@ void ConCommandBase::AddFlags( int flags )
 #endif
 }
 
+void ConCommandBase::RemoveFlags( int flags )
+{
+	m_nFlags &= ~flags;
+}
+
+int ConCommandBase::GetFlags( void ) const
+{
+	return m_nFlags;
+}
+
 
 //-----------------------------------------------------------------------------
 // Purpose: 
@@ -715,6 +725,11 @@ void ConVar::AddFlags( int flags )
 #endif
 }
 
+int ConVar::GetFlags( void ) const
+{
+	return m_pParent->m_nFlags;
+}
+
 bool ConVar::IsRegistered( void ) const
 {
 	return m_pParent->m_bRegistered;
@@ -743,6 +758,16 @@ void ConVar::Init()
 	BaseClass::Init();
 }
 
+const char *ConVar::GetBaseName( void ) const
+{
+	return m_pParent->m_pszName;
+}
+
+int ConVar::GetSplitScreenPlayerSlot( void ) const
+{
+	return 0;
+}
+
 //-----------------------------------------------------------------------------
 // Purpose: 
 // Input  : *value -